Question 676752
Starting with 
4x + y = 4
to put into slope intercept form, isolate the y variable
4x + y - 4x = 4 - 4x
y = -4x + 4
...
Starting with 
kx + y = 6
kx + y - kx = 6 - kx
y = -5x + 6
...
Starting with 
2x + ky = 7
2x + ky - 2x = 7 - 2x
ky = -2x + 7
y = {{{(-2/k)x + 7/k}}}
...
Starting with 
x + 2y = 4
x + 2y - x = 4 -x
2y = -x + 4
y = {{{(-1/2)x + 4/2}}}
y = {{{(-1/2)x + 2}}}
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