a)3x+2=2x-11

b) 7.(x-1)=2.(3x+1)

c) x+4.(x-1)=9-2.(x+3)

Respostas

respondido por: MurilinhoAlenda
0

A) 3x-2x=-11-2 | x = -13

B) 7x-7 = 6x + 1 | x = 8

C) x+4x-4 = 9-2x-6 | 7x = 7 | x = 1

respondido por: Anônimo
0
a)3x+2=2x-11

3x+2=2x-11

3x-2x=-11-2

x=-13


b) 7.(x-1)=2.(3x+1)

7x-7=6x+2

7x-6x=2+7

x=9




c) x+4.(x-1)=9-2.(x+3)


x+4x-4=9-2x-6

5x-4=-2x+3

5x+2x=3+4

7x=7

x=7/7

x=1


espero ter ajudado!

bom dia !

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