Michael and lindsey are saving money. michael begins with $20 and saves $5 per week. lindsey begins with no money, but saves $10 per week. enter the number of weeks it will take for lindsey and michael to save the same amount of money.

Let
x> number of weeks
y> saved money

we now that

Michael begins with $20 and saves $5 per week
so
y=20+5x> equation 1

and
Lindsey begins with no money, but saves $10 per week
y=10x> equation 2

the number of weeks it will take for Lindsey and Michael to save the same amount of money is when equation 1 is equals to equation 2

therefore
20+5x=10x> 10x-5x=20> 5x=20> x=20/5> x=4 weeks

the answer is 
4 weeks

Ican’t sorry i would if i could