And I didn't touch on it in that video, but there is also such a thing as a lower triangular, that you might have guessed how it looks.

And let's replace my class='bold'>class='bold'>first row with the class='bold'>class='bold'>first row plus the second row.

Now, let's replace our class='bold'>class='bold'>first row with the class='bold'>class='bold'>first row minus the third row.

Let's replaced the class='bold'>class='bold'>first row with the class='bold'>class='bold'>first row minus the third row.

So let me replace my class='bold'>class='bold'>first row with my class='bold'>class='bold'>first row minus my second row.

class='bold'>class='bold'>First row

class='bold'>class='bold'>First row?

Keep the whole class='bold'>class='bold'>first row the same. Let's replace the second row with the second row plus the class='bold'>class='bold'>first row.

I'm going to replace the second row with the second row plus the class='bold'>class='bold'>first row.

Well, this was one row, and this is the second row, this is the third row, and this is the fourth row.

class='bold'>class='bold'>First line, follow me.

So let me replace my third row with my third row minus my class='bold'>class='bold'>first row. So I'm going to replace my third row with my third row minus my class='bold'>class='bold'>first row.

I'm not on top of the class.

So we would want to replace our second row with the second row plus the class='bold'>class='bold'>first row, because then these guys would turn out to be 0.

class='bold'>class='bold'>First row contains headers

So our class='bold'>class='bold'>first row's going to be the same.

Let's just divide the class='bold'>class='bold'>first row by minus 2.

He's even sat in the front row.

Miss Bates in the class='bold'>class='bold'>first grade.

minus 1 in the class='bold'>class='bold'>first row minus 1 and 2 in the second row,

My story began in Grade 1, and in Grade 1 I was identified as having a mental block.

And let's replace the class='bold'>class='bold'>first row with the class='bold'>class='bold'>first row plus the second row, because I want to make this a 0.

arrangement of free meals for primary school students (grades 1 4)

And let me replace my second row with my second row times 2 plus my class='bold'>class='bold'>first row.

We replaced the class='bold'>class='bold'>first row with the class='bold'>class='bold'>first row minus the third row, x1 minus x3.

I noticed that she sat in the front row.

The class='bold'>class='bold'>first term is your row.

Row 2 minus row 1.

So the second row minus the class='bold'>class='bold'>first row.

Look 160 for 160 a 160 matching 160 value 160 in 160 the 160 class='bold'>class='bold'>first 160 row 160 of 160 the 160 given 160 table, 160 and 160 return 160 the 160 value 160 of 160 the indicated 160 row.

Now, this third row. Let me replace I want to get a zero here. Let me replace the third row with the third row minus the class='bold'>class='bold'>first row.

Just replace this row with this row plus the class='bold'>class='bold'>first row.

Let's replace this row with this row minus 2 times that row.

Let me replace the second row with 2 times the class='bold'>class='bold'>first row minus the second row.

And then row 2 minus row 1.

The third row minus 3 times the class='bold'>class='bold'>first row.

solutions to 2x y 0 my class='bold'>class='bold'>first row, class='bold'>class='bold'>first equation.

It's the third row minus 3 times the class='bold'>class='bold'>first row.

This row is the same as this row.

And let's replace our second row with the second row minus the class='bold'>class='bold'>first row.

But the transformation I'm going to perform on each of these columns, and we know this is equivalent to a row operation, is going to be equal to since I want to zero this one out, I'm going to keep my class='bold'>class='bold'>first row the same, so it's going to be C1, and I'm going to replace my second row with a times my second row minus c times my class='bold'>class='bold'>first row.

I'll keep the class='bold'>class='bold'>first row the same for now. Let me just draw it like this.

Color the shape that is the same as the class='bold'>class='bold'>first shape in each row.

And here, to utter the stolen gold, you had a ringside seat.

What I could do is I can replace this row with this row minus this row.