Question

Robert earned 10 dollars wich was 4 less than twice what Eric earned how much did Eric earn

Answer 1

Answer:

$7

Explanation:

Let the amount Eric earned = x

4 less than twice what Eric earned =2x-4

Therefore:

$2x-4=10$

We then solve for x.

$\begin{gathered} \text{Add 4 to both sides} \\ 2x-4+4=10+4 \\ 2x=14 \\ \text{Divide both sides by 2} \\ \frac{2x}{2}=\frac{14}{2} \\ x=7 \end{gathered}$

Therefore, Eric earned $7.