ANSWER:
x = 35
STEP-BY-STEP EXPLANATION:
We have the following expression:
[tex]5\cdot\mleft(x+20\mright)=7x+30[/tex]Solving for x:
[tex]\begin{gathered} 5x+100=7x+30 \\ 7x-5x=100-30 \\ 2x=70 \\ x=\frac{70}{2} \\ x=35 \end{gathered}[/tex]The value of x is equal to 35
