# Question #47b7e

Feb 25, 2017

See the entire solution process below:

#### Explanation:

Add $\textcolor{red}{\frac{3}{7}}$ to each side of the equation to solve for $J$ while keeping the equation balanced:

$J - \frac{3}{7} + \textcolor{red}{\frac{3}{7}} = \frac{9}{14} + \textcolor{red}{\frac{3}{7}}$

$J - 0 = \frac{9}{14} + \left(\frac{2}{2} \times \textcolor{red}{\frac{3}{7}}\right)$

$J = \frac{9}{14} + \left(\frac{2 \times 3}{2 \times 7}\right)$

$J = \frac{9}{14} + \frac{6}{14}$

$J = \frac{9 + 6}{14}$

$J = \frac{15}{14}$