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2(7)-5(2)=C
14-10=C
4=c
2x-5y=C
2x-5y=4
2x-5y-4=0
-5y = 8 - 2x
y = 8/-5 -2/-5 x
m = -2/-5 = 2/5
y-2 = 2/5(x-7)
y = 2/5x -14/5 + 2
y = 4x - 28 + 20
10
x10
10y = 4x - 28 + 20
10y - 4x = -8
8 = 4x - 10y