well, did you check it?
3*1+7 = 10
-11 + 2*1 = -9
Bzzzt, but thanks for playing
3x+7 = -11+2x
subtract 7+2x from both sides and you have
x = -18
check:
3(-18)+7 = -47
-11+2(-18) = -47
That's better.
So, how did you come up with 1?
3x+7= -11+2x
my answer
x=1
1 answer