How do you solve x/4 -3=2?

Jul 1, 2016

x = 20

Explanation:

Begin by leaving the x term on the left and placing numeric terms on the right.
We can do this by adding 3 to both sides of the equation.

$\frac{x}{4} \cancel{- 3} \textcolor{red}{\cancel{+ 3}} = 2 \textcolor{red}{+ 3}$

we now have $\frac{x}{4} = 5$

which is the same as $\frac{x}{4} = \frac{5}{1}$

and cross-multiplying gives.

$\left(1 \times x\right) = \left(4 \times 5\right) \Rightarrow x = 20$

a quick check shows that $\frac{20}{4} - 3 = 5 - 3 = 2$