Solve the system of equations -2x-4y=-8−2x−4y=−8 and 7x+5y=-177x+5y=−17 by combining the equations. \big( -2x(−2x -4y−4y == -8\big)−8)
\big( 7x(7x +5y+5y == -17\big)−17)
-2x−2x -4y−4y == -8−8
7x7x +5y+5y == -17−17
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0xx ++
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0yy ==

(from deltha math) HELP

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