Question

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

Answer 1

$7

Step-by-step 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} \\ (2x)/(2)=(14)/(2) \\ x=7 \end{gathered}`

Therefore, Eric earned $7.