exam Maths Puzzle Numerical Ability

4 = 2/3x + 9+ 1/3x

Solve the equation by simplifiing both sides and isolating the variable

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exam Other Question

Hi my name is Dominik, and I'm a little confused of how to set this problem up and solve it.
please help me

The formula for the perimeter of a rectangle is P= 2L + 2W, whare L Please kindly help me with these questions. How can I perform the indicated operation or solve the equation, whichever is appropriate.

1. x^2-4/x / 4x-8/x

2. 4/a^2-1 + 1/2a