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soccerdawg49
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get x by itself by adding/subtracting/ and/or dividing

across
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Let \(x=45\). Then\[2x30=x+15\Longrightarrow2(45)30=45+15\Longrightarrow9030=45+15\Longrightarrow60=60\]YAY!

anthlcs242
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45

andrewv
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thanks all