Respuesta :

9(n+3)=7n-3

1) distribute 9 into (n+3)

9n+27=7n-3

2) subtract 7n on both sides

2n+27=-3

3) subtract 27 on both sides

2n=-30

4) divide by 2

n=-15
9n+27= 7n-3

9n-7n=-3 -27

2n=-3-27

2n= -30

n=-30÷2

n= -15