## Algebra 1

$$q = \pm2$$
First you add 20 to both sides $$5q^2 = 20$$ Then you divide both sides by 5 $$q^2 = 4$$ Then you find the square root of both sides $$q = \pm2$$ That is your final answer since the variable is alone now. Remember you always have to put the plus or minus sign ($\pm$) because any number under the square root that is above $0$ has $2$ has answers.