Question

a)x=40-x

b)5x-5=5

c)x+2=2x-6

Answer 1

Resposta:

a) x=40-x

x + x = 40

2 x = 40

x = 40/2

x = 20

b) 5x-5=5

5 x = 5 + 5

5 x = 10

x = 10/5

x = 2

c) x+2=2x-6

x - 2x = - 6 - 2

- x = - 8 (multiplica por -1)

x = 8