Question

Determine o valor de x

Answer 1

Vamos là.

a)

x + 30 = 50

x = 50 - 30 = 20

b)

x + 35 + 90 = 180

x + 125 = 180

x = 180 - 125 = 55

c)

30 + x =  90

x = 90 - 30 = 60

d)

x + 4x - 25 = 90

5x = 115

x = 23