Answer:
x = 3.5
Step-by-step explanation:
[tex]\frac{3}{5}[/tex] (10x + 15) = 30
10x + 15 = 30 * [tex]\frac{5}{3}[/tex]
10x + 15 = 10 * 5
10x + 15 = 50 {Subtract 15 form both sides}
10x = 50 -15
10x = 35 {Divide both sides bt 10}
10x/10 = 35/10
x = 3.5