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4x + 3y=9 x=0 y=3
8 + y = 4x8 + y - 4x = 4x - 4x 8 + y - 4x = 0 8 - 4x + y = 0
y = 4x-3
y= -4x-7 y=3x 3x= -4x-7 3x+4x=7 7x=7 x=1
y = (4x+9)/(2x+3)2xy+3y = 4x+93y-9 = 4x-2xy3y-9 = x(2-2y)x = (3y-9)/(2-2y)So, inverse function is 3x minus 9 divided by 2 minus 27.