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First, you want to get the y on one side of the equation and everything else on the other side. To do this, add 3x to each side:

9y = 3x + 18

The next step is to divide both sides by 9, which gives you the equation solved for y:

y = x/3 + 2

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13y ago
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Q: How do you solve -3x plus 9y equals 18?
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