Question

determine o valor de x: a) 2x=x-15 ? b) 5x-30=2x?

Answer 1

a)

2x=x-15

2x-x=-15

x=-15

Resposta: -15

b)

5x-39=2x

5x-2x=30

3x=30

x=30/3

x=10

Resposta: 10

Answer 2

Oi

a)

2x = x - 15

2x - x = - 15

x = - 15

b)

5x - 30 = 2x

5x - 2x = 30

3x = 30

x = 30/3

x = 10

Bons estudos.