Question

Resolva as equações abaixo: 2x-20=-20+10
2 (x-5)+4 (1-2x)=5 (3-x)

Answer 1

1) 2x - 20 = -20 + 10
2x = - 20 + 10 + 20

2x = 10
x = 10/2

x = 5

2) 2x - 10 + 4 - 8x = 15 - 5x

2x - 8x + 5x = 15 + 10 - 4

-x = 21 (multiplica por -1)

x= -21

Answer 2

2x-20= -20+10
2x= -20+10+20
2x= 10
x = 10/2
x= 5