Question

— Resolva as equações:
a) 3x= 18
b) 4X= -12
c) x-109= 5
d) 7= x+8
e) -3= x+10

Answer 1

a) 3x = 18
      x = 18/3
      x = 6
b) 4x = - 12
      x = -12/4
      x = - 3
c) x - 109 = 5
    x = 5 + 109
    x = 114
d) 7 = x+ 8
    7 - 8 = x
    x = -1
e) -3 = x +10
    -3 - 10 = x
     x = -13

Answer 2

a)x=18/3 logo x=6
b)×=-12/4 logo x=3
c)x=5-109 logo x=114
d)×=8-7 logo x=1
e)×=10+3 logo x=13