Question 373048
-16x+6y=20  | eliminate x : *1
8x-5y=-22   | *2 = 16x - 10y = -44
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-16x+6y=20
+16x - 10y = -44
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-4y = -24
 
y = 6
 
 
-16x+6y=20  | eliminate y : *5 = -80x + 30y = 100
8x-5y=-22   | *6 = 48x - 30y = -132
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-80x + 30y = 100
48x - 30y = -132
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-32x = -32
 
x = 1
 
 
Verification : 
 
-16 + 36 = 20 
8 - 30 = -22