Question

5/2x+15/2=15

Answer 1

5/2x + 15/2 = 15 times 2 to all
= ?

Answer 2

\[\frac{5}{2x} + \frac{15}{2} = 15\]
\[\frac{5}{2x} = 15 - \frac{15}{2}\]
\[\frac{5}{2x} = \frac{30}{2} - \frac{15}{2}\]
\[\frac{5}{2x} = \frac{15}{2}\]
\[5 = \frac{15}{2} \times 2x\]
\[5 = 15x\]
\[\frac{5}{15} = x\]
\[\frac{1}{3} = x\]

Answer 3

A little shorter method, if you prefer....\[\frac{5}{2x} + \frac{15}{2} = 15 \implies 5+15x=30x \implies 5=15x \implies x=\frac{1}{3}\]