Question

Calcula: "X"
72(x-1)-8
= 52(x-1)-8

Answer 1

Explicación paso a paso:

72(x-1)-8= 52(x-1)-8

72x-72-8= 52x-52-8

72x-52x= 72+8-52-8

72x-52x= 20

20x= 20

x= 20/20

x= 1