The first equation is higher, which means B is the correct answer.
5x - 2x = 2x + 2
Add 2x to both sides.
5x = 4x + 2
Subtract 4x from both sides.
x = 2
5x + 2 = 2x - 10
Subtract 2x from both sides.
3x + 2 = -10
Subtract 2 from both sides.
3x = -12
Divide both sides by 3.
x = -4