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OpenStudy (anonymous):
2x+78=9
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OpenStudy (anonymous):
minus 78 from both sides, 2x + 78 - 78 = 9 - 78 2x = -69 divide 2 both sides,\[\frac{2x}{2}=\frac{-69}{2}\]\[x=34\frac{1}{2}\]
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