Problema Solution
Sofia has been saving money to buy a new computer for her birthday her mom gives her 3 times what she already had saved now Sofia has $220 using x to represent the amount of money Sofia had saved before her moms present write an equation that respresents the situation
Answer provided by our tutors
x = the amount Sofia had before her mom's present
3x = the amount her mom gives
Since the total money Sofia has now is $220 we can write:
x + 3x = 220
If we solve for x:
4x = 220 divide both sides by 4
x = $55
Sofia has $55 before her mom gave her a present.