Question

two column proof 2n-21=n/4

Answer 1

Simplifying:

2n-21=0.25n

We move all terms containing n to the left and all other terms to the right.

+2n-0.25n=+21

We simplify left and right side of the equation.

+1.75n=+21

We divide both sides of the equation by 1.75 to get n.

n=12