Mathematics, 08.01.2021 21:10 PONBallfordM89
If the sum of x and y is 90 and y is 6 more than four times x, which of the following systems of equations could be used to solve for x and y?
A. x+y=90
x−4y=6
B. x+y=90
4x−y=−6
C. x+y=90
6x−y=−4
D. x+y=90
4x−y=6
Answers: 1
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