Math
posted by Donovan .
Matthew and May want to buy a birthday present for their mother. May has 3 times as much money as Matthew. The birthday present costs $50. After buying the birthday present,they have $70 left. How much money dose Matthew have at first?

Math 
Damon
Matt had x
May had 3x
4 x  50 = 70
4 x = 120
x = 30
=======================
check
Matt 30
May 3*30 = 90
sum = 120
120 = 50+70
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