Question

Xavier has x dollars. This morning Alex had twice as much money as Xavier. After Alex spent three dollars on chips, he only had seven dollars left. How much money does Xavier have?

Answer 1

Xavier has 5 dollars

Explanation:

2x represents how much money Alex had, the -3 is how much he spent, and the 7 is how much he has now

`2x-3=7`

Add 3 to both sides

`2x=10`

divide both sides by 2

`x=5`

Checking my work:

`2*5-3=7\\10-3=7\\7=7`