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CEMC Fermat, 2012

Algebra Difficulty 1.1 Junior Find the answer Canada

If 3−5+7=6−x3-5+7=6-x, then xx equals

Pick one

Solution

Simplifying the left side of the equation, we obtain 5=6−x5 = 6-x.

Therefore, x=6−5=1x = 6-5 =1.

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