Question

Please awnser this as soon as possible.

Answer 1

2( n+7)-7=9

multiply the bracket by 2

(2)(n)=2n

(2)(7)=14

2n+14-7=9

2n+7=9

move +7 to the other side

sign changes from +7 to -7

2n+7-7=9-7

2n=9-7

2n=2

divide both sides by 2 to get n by itself

2n/2=2/2

Answer:

n=1