2.3^x=57-^x-2

2.3x-57-3x-2

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1 Answer

Do you mean 2(3x)=57-3x-2?

Let y=3x-2, then 3x=(3x-2)(32)=9y, so:

18y=57-y, 19y=57, y=57/19=3, so 3x-2=31, x-2=1, x=3 is the solution.

CHECK:

2(33)=2(27)=57-31=54✔️

by Top Rated User (1.2m points)

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