Question

6- 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
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=8-5

x=3

b) x – 4 = 3

x=3+4

x=7

c) x + 6 = 5

x= 5-6

c= -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

h) X – 39 = -79

x= -79+39

x= -40

i) 10 = x + 8

10-8=x

2=x

j) 15 = x + 20

15-20=x

-5=x

k) 4 = x - 10

4+10=x

14=x

1) 7 = x + 8

7-8=x

-1=x

m) 0 = x + 12

0-12=0

-12=x

n) -3 = x + 10

-3-10=x

-13=x