Question

4) Resolva as equações:
a) x+ 5 = 8
b) 1-4 = 3
c) x+6=5
d) x-7=-7
e) + 9 = 1
f) x+28 = 11
g) x-109 = 5
h) x-39 =-79
i) 10 = x+8
j) 15 = x + 20
k) 4 = x - 10
1) 7 = x + 8
m) 0 = x + 12
n) - 3 = x+10​

Answer 1

Resposta:

a) x+ 5 = 8

x=3

b) 1-4 = 3

-3=3

c) x+6=5

x=-1

d) x-7=-7

x=0

e) + 9 = 1

x=-8

f) x+28 = 11

x=-17

g) x-109 = 5

x= 114

h) x-39 =-79

x= -40

i) 10 = x+8

x=2

j) 15 = x + 20

x=-5

k) 4 = x - 10

x=14

1) 7 = x + 8

x=-1

m) 0 = x + 12

x=-12

n) - 3 = x+10​

x=-13