Answer:
$75 + $50m = $175
Step-by-step explanation:
First, he deposited $75 that don't depend on the number of months. After that, he deposits $50 per month.
So, in the first month he will have the initial $75 and $50, that is $75 + $50*1 = $125.
When we multiply by 1 it means that only one month passed.
We need to find out the number of months it will take him to save a total of $175. For that, we take the initial $75, we add $50 multiplied by the number of months and that have to equal $175.
$75 + $50m = $175
If we want to find out m, we subtract $75 on both sides of the equation and then divide it by $50:
$75 + $50m - $75 = $175 - $75
$50m = $100
$50m/$50 = $100/$50
m = 2
