book Maths Puzzle Numerical Ability

the sum of a number and 5 times its reciprocal is 6. find the number(s)

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book Other Question

15-(2x-7)=14

what is x = to??? Hello,

I need help with a few problems i cant seem to work out for homework.

1:Solve for x: 9^x=3
2:Solve for x: 2^9x^-4=32
3:Solve for x: log10^7=log10x-log10^2

Thanks