Home > AC > Chapter 3 > Lesson 3.1.3 > Problem3-24

3-24.

Find the value of $x$ that makes each equation below true.

1. $x+7=2$

Subtract $7$ from both sides.

$x=−5$

1. $−5=\frac{1}{2}x$

Divide both sides by one half (otherwise known as multiplying by $2$).

1. $3x=−45$

Divide both sides by $3$.

1. $2=−x$

Divide both sides by $−1$.

1. $−5=\frac{x}{2}$

Multiply both sides by $2$.

1. $x^2=9\ (all\ \text{possible values for}\ x)$

Find the square root of both sides. Remember to include both the positive and negative values as you are taking the square root of a variable.