Question

$$\frac{ 2x+3 }{ 2x-1 } = \frac{ 3x-1 }{ 3x+2 }$$

Answer

x=-5/18

Solution


Cross multiply.
\[(2x+3)(3x+2)=(3x-1)(2x-1)\]
Expand.
\[6{x}^{2}+4x+9x+6=6{x}^{2}-3x-2x+1\]
Simplify  \(6{x}^{2}+4x+9x+6\)  to  \(6{x}^{2}+13x+6\).
\[6{x}^{2}+13x+6=6{x}^{2}-3x-2x+1\]
Simplify  \(6{x}^{2}-3x-2x+1\)  to  \(6{x}^{2}-5x+1\).
\[6{x}^{2}+13x+6=6{x}^{2}-5x+1\]
Cancel \(6{x}^{2}\) on both sides.
\[13x+6=-5x+1\]
Add \(5x\) to both sides.
\[13x+6+5x=1\]
Simplify  \(13x+6+5x\)  to  \(18x+6\).
\[18x+6=1\]
Subtract \(6\) from both sides.
\[18x=1-6\]
Simplify  \(1-6\)  to  \(-5\).
\[18x=-5\]
Divide both sides by \(18\).
\[x=-\frac{5}{18}\]

Decimal Form: -0.277778