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2 + 7^6x = 5
7^6x = 5-2 = 3
take natural log both sides
ln (7^6x) = ln 3
6x . ln 7 = ln 3
6x = ln 3 / ln 7
6x = 1.098 / 1.946 ..............use log tables or calculator to find values of ln 3 and ln 7
6x = 0.5645
x = 0.5645/6
x = 0.094 ...................Answer
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