what is the solution to the system of equations? x-y=7 3x-2y=8

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(1) Answers

millie9474

x-y=7
3x-2y=8
To eliminate y, we multiply equation I by 2;
2x-2y=14
3x-2y=8
Subtracting equation I from equation II;
x=-6
Replacing for x in equation I;
-6-y=7
-6-7=y
y=-13