Explanation:
a)-5x+6=y
b)2x-1=y
c) -3/6x+2=y
5x = -y + 6
y = 6-5x
-5y +10x = 5
5y = 10x -5
y = 10x-5/5
y = 2x -1
6y = -3x+12
y = -3x+12/6 = -1/4x +2
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