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(1+3x)-(1-2x)+(-11-7x)=5

Resposta :

Francielebatista64go

Resposta:

(1+3x)-(1-2x)+(-11-7x)=5

1+3x-1+2x-11-7x=5

3x+2x-7x=5-3-1+11

5x-7x=2+10

-2x=12

x=12/-2

x= -6

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