# How do you solve (3+x)/8=7/12?

Jul 23, 2016

$x = \frac{20}{12} = \frac{5}{3}$

#### Explanation:

An equation with one fraction on each side of the equal sign is solved easiest by cross multiplying.

$12 \left(3 + x\right) = 7 \times 8$

$36 + 12 x = 56$

$12 x = 20$

$x = \frac{20}{12} = \frac{5}{3}$