1.

x %2B 2*y %2B 1=0

Answer»

x + 2y = - 1...... (1)2x - 3y = 12..... (2)

Multiply eq(1) by 22x + 4y = - 2.....(3)

Subtract eq(2) from eq(3)

4y + 3y = - 2 - 127y = - 14y = - 14/7 = - 2

Put value of y in eq(1)x + 2*-2 = - 1x - 4 = - 1x = - 1 + 4 = 3



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