Question

me ajudem .........,....

Answer 1

a)
30 + x = 60
x = 60 - 30
x = 30

b)
2x + 4x + 30 = 180
6x = 180 - 30
6x = 150
  x = 150/6
  x = 25

c)
2x - 10 = 40
2x = 40 + 10
2x = 50
x = 50/2
x = 25

d)
2x - 10 = x + 20
2x - x = 20 + 10
x = 30

Espero ter ajudado: