Raymond B. answered • 10/09/20
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Math, microeconomics or criminal justice
x + y = 28
6x+3y=105
3x+3y = 84 (multiply 1st by 3) then subtract from 2nd
to get
3x = 21
x = 7
y= 28-7 = 21
Austin M.
asked • 10/08/20Systems of equations
The sum of two numbers is 28, and the sum of 6 times the first number and 3 times the second number is 105.
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