Question

alguem me ajuda

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=×+8
j)15=×+20
k)4=x-10
l)7=x+8
m)0=x+12
n) -3=x+10

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Answer 1

n)x=10-3

x=7

m)x=12+0

x=12

l)x=7+8

x=15

Answer 2

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

h)x-39=-79

x = - 79 + 39

x = - 40

i)10=×+8

10 - 8 = x

x = 2

j)15=×+20

15 - 20 =x

x = - 5

k)4=x-10

4 + 10 = x

x = 14

l)7=x+8

7 - 8 = x

x = - 1

m)0=x+12

0 - 12 = x

x = - 12

n) -3=x+10

- 3 - 10 = x

x = - 13