Question

$$\frac{ x }{ 2 } - \frac{ 1 }{ 5 } = \frac{ x }{ 5 } + \frac{ 1 }{ 4 }$$

Answer

x=3/2

Solution


Multiply both sides by \(10\) (the LCM of \(2, 5\)).
\[5x-2=2x+\frac{5}{2}\]
Add \(2\) to both sides.
\[5x=2x+\frac{5}{2}+2\]
Simplify  \(2x+\frac{5}{2}+2\)  to  \(2x+\frac{9}{2}\).
\[5x=2x+\frac{9}{2}\]
Subtract \(2x\) from both sides.
\[5x-2x=\frac{9}{2}\]
Simplify  \(5x-2x\)  to  \(3x\).
\[3x=\frac{9}{2}\]
Divide both sides by \(3\).
\[x=\frac{\frac{9}{2}}{3}\]
Simplify  \(\frac{\frac{9}{2}}{3}\)  to  \(\frac{9}{2\times 3}\).
\[x=\frac{9}{2\times 3}\]
Simplify  \(2\times 3\)  to  \(6\).
\[x=\frac{9}{6}\]
Simplify  \(\frac{9}{6}\)  to  \(\frac{3}{2}\).
\[x=\frac{3}{2}\]

Decimal Form: 1.5