starca9tsotia3kholla starca9tsotia3kholla

15-03-2017
Mathematics

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One number is 5 more than another number.three times the first plus twice the second number is 30.find the numbers

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charlottekrist charlottekrist

15-03-2017

x=first number
y=second number
x=y+5
3x+2y=30
3(y+5)+2y=30
3y+15+2y=30
5y+15=30
5y=30-15
5y=15
y=3
x=3+5
x=8

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