exam Maths Puzzle Numerical Ability

Can you explain how to solve for x?

4x+5=cx+2

Thank you!

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exam Other Question

here it is:

x^-3y^-2 / z^-4

I need help simplifying and writing with positive exponents. Thanks.

Gabriel. I need some help with two problems. Thanks alot.

Solve the logrithim equation. leave answer in exact form
log x = log 2x^2 -2

solve the equation
ln 4 - ln x = 20

thanks again