Question

Resolva:
a) X - 4 = 3
b) X + 6 = 5
c) X - 7 = -7
d) X + 9 = -1
e) X + 28 =11
f) X - 109 = 5
g) X- 39 = -79

Answer 1

a)x-4=3 x=3+4=> x=7
b)x+6=5 x= 5-6 x=-1
c)x-7=-7 x= 1
d)x+9=-1 x=-1-9 x=-10
e assim vc vai fazendo com todos

Answer 2

a)x=3+4=7
b)x=5-6=-1
c)x=-7+7=0
d)x=-1-9=-10
e)x=11-28=-17
f)x=5+109=114
g)x=-79+39=-40