Question

3(x-20)=-5(4-2x)
equaçao de 1 grau

Answer 1

3.(x-20)=-5.(4-2x)=
-60+5-4=3x
-55-4=3x
-51/3=x
x=-17

Answer 2

3(x - 20) = -5(4 - 2x)

3x - 60 = -20 + 10x

10x - 3x  = +20 - 60

7x = -40

x = -40/7

Espero ter ajudado.