Answer:
the 2nd option
Step-by-step explanation:
first option :
-3x + 7 + 8x = 5x + 15 - 8
combine like terms
-3x + 8x - 5x = +15 - 8 - 7
0
Second option :
3x - 2 = 5x + 12 - 2x
combine like terms
3x - 5x +2x = 12 + 2
0 = 14
third option
3x - 5 = -2x - 5
combine like terms
3x + 2x = +5 - 5
5x = 0
x = 0
fourth option
3x - 3 = -2x + 2
combine like terms
3x + 2x = 3 + 2
5x = 5
x = 1
