Question

Exercícios:
a)9x-2=4x+18
b)4x-18+3x=10
c)7x+1=5x-7
d)2(x+5)-4=26
e)3(x+2)=2(x-7)
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Answer 1

Resposta:

a) 9x-2=4x+18

9x-4x=18+2

5x=16

b) 4x-18+3x=10

4x+3x=10+18

7x=28

c) 7x+1=5x-7

7x-5x=-7-1

2x=-8

d)2(x+5)-4=26

2x+5-4=26

2x=26-5+4

2x=25

e)3(x+2)=2(x-7)

3x+2=2x-7

3x-2x=-7-2

1x=-9