Question

mim ajuda aí galera tenho que entregar amanhã cedo ​

Answer 1

Resposta:

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 - 3 = -7

x = -7 + 3

x = -4

e) x + 9 = -1

x = -9 - 1

x = -10

f) x + 28 = 11

x = 11 - 28

x = - 17

g) x - 109 = 5

x = 5 + 109

x = 114

h) x - 39 = -79

x = -79 + 39

x = -40

i) 10 = x + 9

x + 9 = 10

x = 10 - 9

x = 1

j) 15 = x + 20

x + 20 = 15

x = 15 - 20

x = -5

l) 4 = x - 10

x - 10 = 4

x = 4 + 10

x = 14

m) 7 = x + 8

x + 8 = 7

x = 7 - 8

x = -1

n) 0 = x + 12

x + 12 = 0

x = -12

o) -3 = x + 10

x + 10 = -3

x = -3 - 10

x = -13