Question 10266
Use the second equation to solve for y by adding x to each side:
y-x = 12
y=x+ 12


Now substitute into the first equation:
3x + 2y = -34
3x + 2(_______) = -34
3x + 2(x+ 12)= -34
3x + 2x + 24 = -34
5x +24 - 24 = -34 - 24
5x = -58
x= -58/5


I think maybe you copied the problem wrong.  Better take another look.  I think the second equation was supposed to be 3x-2y = -34.  If this is the case, then the answer in the solution was correct, and you made an error.


R^2 at SCC