Question

quanto é x+x-20+2.(x-20)=160?

Answer 1

x+x-20+2.(x-20)=160
2x-20+2x-40=160
4x-20-40=160
4x=160+20+40
4x=220
x=220/4
x=55

Answer 2

x + x - 20 + 2.(x - 20) = 160

x + x - 20 + 2x - 40 = 160

x + x + 2x = 160 + 20 + 40

2x + 2x = 220

4x = 220

x = 220/4

x = 55