Question

Write the equation for nancy started the year with $425 in the bank and is saving $25 a week. sam started with $875 and is spending $15 a week. when will they both have the same amount of money in the bank

Answer 1

X is the amount of weeks.
Equation: 425+25x=875-15x

Solve for x:
25x+15x=875-425
40x=450
x=11.25
The answer is 11.25 weeks.