# How do you solve 5x-3=12?

$x = 3$

#### Explanation:

$5 x - 3 = 12 \text{ }$the given

$5 x - 3 + 3 = 12 + 3 \text{ }$Addition property of equality

$5 x = 15 \text{ }$simplification

$\frac{5 x}{5} = \frac{15}{5} \text{ }$Division property of equality

$x = 3$

God bless....I hope the explanation is useful.

Jun 20, 2016

x = 3

#### Explanation:

We need to isolate the term 5x on the left side and place the numeric terms on the right.

To achieve this we add 3 to both sides.

$5 x \cancel{- 3} \textcolor{red}{\cancel{+ 3}} = 12 \textcolor{red}{+ 3}$

we now have 5x = 15

To obtain x , divide both sides by 5.

$\frac{{\cancel{5}}^{1} x}{\cancel{5}} ^ 1 = {\cancel{15}}^{3} / {\cancel{5}}^{1}$

$\Rightarrow x = 3 \text{ is the solution}$

check by substituting x = 3 into left side.

$\left(5 \times 3\right) - 3 = 15 - 3 = 12 \text{ equals the right side }$