00:01
All right, so for this problem, we are going to solve the system of linear equations by using the elimination method.
00:07
I'm sorry.
00:08
So, for our first equation, we have 3 .4x plus 1 .7y is equal to 8 .33.
00:17
And for our second equation, we have negative 2 .7x minus 7 .8y is equal to 15 .96.
00:30
So the very first thing i'm going to do is figure out which variable i want to eliminate or allow to cancel out.
00:37
So we're going to do our x variable.
00:40
Therefore, i am going to multiply my first equation by the fraction 27 over 34.
00:48
And when i do that, my first equation is now 2 .78 plus 1 .35y is equal.
01:03
Equal to 6 .61i.
01:08
And my second equation stays the same.
01:11
So i'm just going to rewrite that under negative 2 .7x minus 7 .8y is equal to 15 .96...