Question

Solve the equation 3(n + 3) = -4n+ 30.

Answer 1

3(n+3)= -4n+ 30
3n+ 9= -4n+ 30
7n= 21

n=3


1. Distribute
2. Add 4n to both sides
3. Subtract 9 to both sides
4. Divide By 7
5. Answer: n=3

Answer 2

n= 3

Explanation:

3(n+3)= -4n+30

3n+9= -4n +30 expand

7n+9 = 30 +4n to both sides

7n = 21 -9 from both sides

n= 3 divide by 7 on both sides