Question

If 10= 15/-6+x , what is the value of 5 + x

a.7.5
b.12.5
c.80
d.0.5

Answer 1

A. 7.5

Explanation:

Answer 2

A. 7.5

Explanation:

15 / -6 +x = 10

15 /-6 +x * (-6+x) = 10 * (-6+x ) : multiply both sides by -6+x

15 = 10(-6+x) : simplify

15 = -60+10x : distribute

15+60 = 10x : addition property of equality

75/10=10x/10 : division property of equality

x = 7.5