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31-05-2023
Mathematics

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Solve the system of equations x-y=-14x−y=−14 and 5x+7y=-105x+7y=−10 by combining the equations.

\big( x(x -y−y == -14\big)−14)

\big( 5x(5x +7y+7y == -10\big)−10)

xx -y−y == -14−14

5x5x +7y+7y == -10−10

0

0xx ++

0

0yy ==

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