isla-mason_60a0e8d0f2b5c
isla-mason_60a0e8d0f2b5c
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Set up a system of equations: x+y=37 X-Y=21 Solve one of the equations for one of the variables: x=37-y Plug that into the other equation in place of x: (37-y)-y=21 Solve for y: 37-2y=21 y=8 Plug this y into one of the equa…