Question

What is 7(9n − 3) − 7n
In order please
simply

Answer 1

Answer: 56n-21

Explanation:

7(9n-3)-7n Multiply parenthesis

63n-21-7n

SUBTRACT 63n-7n- 56n

Answer is: 56n-21

We leave 21 alone because it is a constant. We leave 56n alone because there is no like term with the variable n.

Answer 2

n= 3/8

Explanation:

63n -21 -7n

63n - 7n = 21

56n = 21

n= 3/8 or 0.375