Question

Lola is saving money for a new bike. The first month, she saves $50 from her birthday. Lola plans to save $10 per month thereafter until she has enough money to buy a bike that costs $100. After how many months will Lola have enough money to buy the bike? How much money does Lola have after the first month?

Answer 1

So this can be translated like the following:
Bike costs= 173 dollars She currently has 107. She saves 11 dollar per week to get the bike so the formula is:
173 = 107 + 11X where X is the number of weeks

Step 1: bring the 107 to the other side to get 173-107 = 11X
Step 2: divide both sides by 11 to solve for X to get this (173-107 )/11 = X
Step 3: Calculate and simplify 66 / 11 = X which is the same as X= 6

So the answer is it will take jennifier 6 weeks to save for the bike.