190k views
18 votes
How to isolate the variable in the equation -2/3n + 7 = 15 lesson 6-2

User Abbas
by
4.5k points

1 Answer

2 votes

Answer:

n=-4/3

Explanation:

So the equation is -2/3n+7=15

First you subtract 7 from both sides: -2/3n+7-7=15-7 : -2/3n=8

Next multiply by 1/-2 on both sides, canceling out the -2 on the left and dividing 8 by -2 on the right: 3n=-4

Next divide by 3 on both sides

Answer: n=-4/3

User Snehal S
by
4.4k points