Question

Solve:3(100 + 2x) = 4(130 + x)

Answer 1

ANSWER:

110

STEP-BY-STEP EXPLANATION:

We have the following equation:

$\begin{gathered} 3\cdot\mleft(100+2x\mright)=4\cdot\mleft(130+x\mright) \\ \end{gathered}$

We solve for x:

$\begin{gathered} 300+6x=520+4x \\ 6x-4x=520-300 \\ x=\frac{220}{2} \\ x=110 \end{gathered}$

The equation is true when x is equal to 100