You can put this solution on YOUR website! How would you graph 1/2x + 2/3y = 1
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If it's (1/2)x + (2/3)y = 1, it's a straight line. I'd plot 2 points and draw a line thru them.
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If it's I'd plot more points and draw a smooth curve thru them.
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Parentheses are free, use some.