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Anonymous
2x - 3y = -1 Eq.1
y = -4x + 24 Eq.2
Put the value of Eq.2 on Eq.2
2x - 3(-4x + 24 ) = -1
2x + 12x -72 = -1
14x -72 = -1
14x = 72-1
14x = 71
x= 71/14 .............. X = 5.07
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4x+8y=-24
-2x = -4x + 24 2x = 24 x = 12
2
4x-14
8x-1 = -4x+23 8x+4x = 23+1 12x = 24 x = 2