Question

Resolva:
A) 14-3x= 2x+29
B) 8x-9= 2x+11
C) 10-4x=9-2x
D) 2.(7x+2)+12.(x+1)=2

Answer 1

Resposta:

Explicação passo-a-passo:

A) 14-3x= 2x+29

-3x-2x=29-14

-5x=15

x=15/-5

x=-3

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B) 8x-9= 2x+11

8x-2x=11+9

6x=20

x=20/6 :2

x=10/3

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C) 10-4x=9-2x

-4x+2x=9-10

-2x=-1 (-1)

x=1/2

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D) 2.(7x+2)+12.(x+1)=2

14x+4+12x+12=2

26x=2-16

x=-14/26 :2

x= -7/13