Question

Dau coroana :x+6+2(x-1)=x+40

Answer 1

x+6+2x-2= x+40
3x+4 = x+40
3x-x = 40-4
2x = 36
x = 36:2
x = 18

Answer 2

x+6+2(x-1)=x+40
x+6+2x-2=x+40
x+2x+6-2=x+40
3x+4=x+40
3x-x=40-4
2x=36
x=36:2
x=18

Succes!!