How do you solve 3n + 7 ÷ 5 = 173n+7÷5=17?

1 Answer
Jul 31, 2015

n=26/5n=265

Explanation:

3n+7-:5=173n+7÷5=17

Divide 77 by 55 first.

3n+7/5=173n+75=17

Multiply both sides of the equation by 55.

5*3n+5*7/5=17*553n+575=175 =

5*3n+cancel5*7/cancel5=17*5 =

15n+7=85

Subtract 7 from both sides of the equation.

15n=85-7 =

15n=78

Divide both sides by 15.

n=78/15

Simplify 78/15 to 26/5.

n=26/5