Exercise ID319

Algebra → Exponential equations and inequalities → Exponential equations
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Evaluate the following expression:

7x+2+2×7x-1=345

7x×72+2×7x×7-1=345 7x×72+27=345 7x×343+27=345 7x×3457=345 7x=345×7345 7x=7 x=1
x=1
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