18x + 3y = 24
Suctract 18x from both sides of the equation:
18x-18x +3 y= 24-18x
3y= 24-18x
Divide both sides by 3
3y/3 = (24-18x)/3
y= 24/3-18/3x
y= 8-6x
y= -6x+8
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