Respuesta :

mahaareta

Answer:

3x + 7 = -x -1

1=1

4x = -8

-8 = -8

Step-by-step explanation:

3x + 7 = -x -1

3(-2)+7=-(-2)-1

-6+7=2-1

1=1

4x = -8

4(-2)=-8

-8 = -8

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