Question

tim x :-2x-40=(5-x)-(-15+60)

Answer 1

-2x-40=(5-x)-(-15+60)

=> -2x - 40 = 5 - x + 15 +60

=> -2x - 40 = 80 - x

=> -2x + x = 80 + 40

=> -x = 120

Answer 2

-2x-40=(5-x)-(-15+60)

-2x - 40 = 5 - x - 45

-2x - 40 = -x - 40

-2x + x = -40 + 40

-1x = 0

x = 0