Question

$$x+3,x+5_{1}x+7=15$$

Answer

x=12,2/13

Solution


Simplify  \(x+51x+7\)  to  \(52x+7\).
\[x+3,52x+7=15\]
Switch sides.
\[15=x+3,52x+7\]
Break down the problem into these 2 equations.
\[15=x+3\]
\[15=52x+7\]
Solve the 1st equation: \(15=x+3\).
\[x=12\]
Solve the 2nd equation: \(15=52x+7\).
\[x=\frac{2}{13}\]
Collect all solutions.
\[x=12,\frac{2}{13}\]

Decimal Form: 12, 0.153846