1.

Solve : 2x + 7y-5= 0;-3x + 8y =-11

Answer»

2x+7y=5....1...*3and -3x+8y=-11....2...*2Hence the equations will be6x+21y=15-6x+16y=-22hence add the equations37y=-7y=-7/37Henceput in equation 12x-49/37=52x=5+49/372x=234/37x=117/37



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