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Eduardo34578910go
Respondido

a) x + 5 = 6
b) x + 8 = -10
c)2x + 3 = -9
d) - x = 4
e)-5x = -10
f)4x = 17
g) 7x = 4x + 9
h)9x - 3x = - 2x +24
i) 7x +9 - 2x = 20 + 4x + 1
j) 30x - 15 = 45 + 15x

Resposta :

06rebecago

Explicação passo-a-passo:

a)

x = 6 - 5

x = 1

b)

x = - 10 - 8

x= - 18

c)

2x = - 9 - 3

x = - 12 ÷ 2

x = - 6

d)

- x (-1) = 4 (-1)

x = - 4

e)

- 5x (-1) = -10 (-1)

5x = 10

x = 10/5

x = 2

f)

x = 17/4

x = 4,25

g)

7x - 4x = 9

3x = 9

x = 9/3

x = 3

h)

9x - 3x + 2x = 24

8x = 24

x = 24/8

x = 3

i)

7x - 2x - 4x = 20 + 1 - 9

x = 12

j)

30x - 15x = 45 + 15

15x = 60

x = 60/15

x = 4

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