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-7y-4x=1.............eqn 1 7y-2x=53..........eqn 2 Add both eqns -6x=54 x=54/-6 x=-9 Sub for x in eqn 1 -7y-4(-9)=1 -7y+36=1 -7y=1-36 -7y=-35 y=-35/-7 y=5 :x=-9 and y=5
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