Answer:
x = 6
Step-by-step explanation:
First, just to simplify things, multiply both sides by 6.
[tex]\frac{5}{6} *6=\frac{15}{x} *6\\[/tex]
On the left side, the sixes cancel out (6/6=1) and on the right side, you just multiply the numerator by 6. You're left with 5 = 30/x
Next, multiply both sides by x
On the left side is 5x, and on the right, the x's cancel out for the same reason the sixes canceled out in the first step. Now you have 5x=30
To isolate x, divide both sides by 5
5/5=1
30/5=6
x=6