must have done
since 3x+y = -9,
-3x = y+9
using that, we have
(y+9)-2y = 12
-y = 3
y = -3
It would have helped had you shown your work.
{3x+y=-9
{-3x+-2y=12
What is the y-value of the solution to this system of equations?
A. -7
B. -3
C. -2
D. -1
I tried them all and I must have did something wrong because none of them worked. Help please!! Thanks.
2 answers
My work is on a piece of paper. Kinda hard to show that.