11x + 15y = -23 and 7x - 2y = 20 solve for X &y
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11x+15y =-23 (a)
7x-2y = 20 (b)
equation (a) multiply by 2 and equation (b) multiply by 15
22x+30y = -46
105x - 30y = 300
127x = 254
x = 254/127
x= 2
putting the value of x in equation 2
14- 2y = 20
-2y = -6
y = 3
so x,y = 2,3
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