Question

Elimination!!! Solving systems of equations...
Can anyone help me figure out these, using elimination? 3x-6y=3 7x-5y=-1
Thank yous!

Answer 1

Multiply the first equation by -(7/3) and get
-(7/3)*3x + (7/3)*6y = -(7/3)*3
-7x + 14y = -7
Now add first and second equations and find
-7x + 7x - 5y + 14y = -7 -1
9y = -8
y = -8/9
Substitute back and find x

Answer 2

It's a bit simpler to reduce the 3x-6y = 3 --> x -2y = 1 first then multiply by -7

Answer 3

okay... thanks. Both of ya! ;P