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7r-3s=18

3r+7s=16
Solve by the elimination method, please.

2 answers

7r-3s=18
3r+7s=16
21r -9s =54
-21r-49s=-112
-58s=-58
solve for s, then put that back into one of the equations to solve for r

solve by elimination

7r-3s=-17

3r+7s=59

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