Answers:
12n + 170 = 770
Subtract 170 from both sides
12n = 600
Divide both sides by 12
n = 50
Solve for N
770 - 170 = 600
600/12 = 50
N = 50
Bob started saving money. he had $170 in his savings at the beginning. He has been saving for one year and now has $770. How much did he save every month?
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