Question

RESOLVA AS EQUAÇÕES
A)X+5=8
B)X-4=3
C)X+6=5
D)X-7=-7
E)X+9=-1
F)X+28=11
G)X-109=5

Answer 1

a) x + 5 = 8 ==> x = 8 - 5 ==> x = 3

b) x - 4 = 3 ==> x = 3 + 4 ==> x = 7

c) x + 6 = 5 => x = 5 - 6 ==> x = - 1

d) x - 7 = - 7==> x = - 7 + 7 ==> x = 0

e) x + 9 = - 1 ==> x = - 1 - 9 ==> x = - 10

f) x + 28 = 11 ==> x = 11 - 28 ==> x = - 17

g) x - 109 = 5 ==> x = 5 + 109 ==> x = 114