Answer :
Perhaps your sign was not correct.
x = -9
2(x + 3) = 3(x + 5)
Distribute.
2x + 6 = 3x + 15
Isolate the terms.
2x - 3x = 15 - 6
-x = 9
Divide by -1, solve for x.
x = 9/-1
x = -9
Check.
2 ( -9 + 3) = 3 (-9 + 5)
2(-6) = 3(-4)
-12 = -12
Solved.