Question

Answer this real-world question

Xavier had $100 in his lunch account. He spends $6 for lunch each day. Zack has $160 in his lunch account. He spends $10 each day. After how many days will the boys have the same amount of money in their accounts? How much money will they each have on that day?

Answer 1

After 15 days they'll both have $10

Step-by-step explanation:

100 (Xavier's total)- 6x (6 dollars every day) = 160 (Zach's total amount) -10x (10 dollars every day)

`100-6x=160-10x\\`

+10x on both sides

`100+4x=160`

-100 on both sides

`4x=60`

/4 on both sides

`x=15`