Question

Tìm số nguyên x,biết;
4x-15=(-75)-x

Answer 1

4x-15=(-75)-x

=>4x+x=(-75)+15

=>5x=-60

=>x=-12

Vậy x=-12

Answer 2

4x-15=(-75)-x

4x+x=(-75)+15

5x=-60

x=(-60):5

x=-12

Answer 3

4x-15=(-75)-x

4x+x=(-75)+15

5x =(-60)

x =(-60):5

x = -12

Answer 4

4x-15=(-75)-x

4x+x=(-75)+15

5x =(-60)

x =(-60):5

x =-12

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