5x+2y=-2...... eqn 1
3x-5y=17.4 .... eqn 2
multiplying 3in eqn 1 and 5 in eqn 2 and then subtracting them..
15x+6y=-6
15x-25y=87
31y = -93
y=-3
putting y=-3 in eqn 1
5x-6=-2
5x=4
x=4/5
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5x+2y=-2...... eqn 1
3x-5y=17.4 .... eqn 2
multiplying 3in eqn 1 and 5 in eqn 2 and then subtracting them..
15x+6y=-6
15x-25y=87
31y = -93
y=-3
putting y=-3 in eqn 1
5x-6=-2
5x=4
x=4/5