Question

determine o valor do x​

Answer 1

Resposta:

a)x=51 ; b)x=18 ; c)x=30 ; d)x=50

Explicação passo-a-passo:

a) x+39 = 90

x = 90-39 = 51

b)3x+2x = 90

5x=90

x=90/5 = 18

c)120+2x = 180

2x = 180-120 = 60

x = 60/2 = 30

d) x-10+2x+40 = 180

3x+30 = 180

3x = 180-30 = 150

x = 150/3 = 50