Question

Calcule as equações

a) 3x - 15 = 0

b) 2x + 3x + 25 = 10

c) 5x - 1 + x 9 = 3

d) 2/3x + 15 - x = 8

e) 2x + x - 1 = 10​

Answer 1

Resposta:

a) x = -5

b) x = -5

c) x = 5

d)x =21

e) x = 11