SOLUTION: .03x+.05(3x)=5400 this is the equation i came up with from a word problem trying to figure out how much was invested at 3% annual interest and, 3 times that at 5% interest if th

SOLUTION: .03x+.05(3x)=5400 this is the equation i came up with from a word problem trying to figure out how much was invested at 3% annual interest and, 3 times that at 5% interest if th

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Question 280650: .03x+.05(3x)=5400
this is the equation i came up with from a word problem trying to figure out how much was invested at 3% annual interest and, 3 times that at 5% interest if the yearly total of both is 5400.
I don't know what to do next though
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
.05*3x+.03x=5400
.15x+.03x-162=5400
.18x+5400
x=30000
.03x=900
.05x*3=4500
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