SOLUTION: Sam spent 40 percent of his money and an addition $13 on some shirts. He spent 70 percent of the remaining money and an additional $68 on a radio. If he had $126 left, how much

Question 1088521: Sam spent 40 percent of his money and an addition $13 on some shirts. He spent 70 percent of the remaining money and an additional $68 on a radio. If he had $126 left, how much money did Sam have at first?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Sam spent 40 percent of his money and an addition $13 on some shirts.
He spent 70 percent of the remaining money and an additional $68 on a radio. If he had $126 left, how much money did Sam have at first?
:
let a = the original amt
the equation
a = (.40a+13) + (.70(a - (.40a+13)) + 68) + 126
a = (.40a+13) + (.70(a - .40a - 13)) + 68) + 126
a = (.40a+13) + (.70(.6a - 13)) + 68) + 126
a = (.40a+13) + (.42a - 9.1) + 68 + 126
a = .40a + .42a + 13 - 9.1 + 68 + 126
a = .82a + 197.9
a - .82a = 197.9
.18a = 197.9
a = 197.9/.18
a = $1099.44 he had at first
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