exam Maths Puzzle Numerical Ability

Solve the equation.
b/3 - b/4 = 5

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exam Other Question

CAN SOMEONE PLEASE HELP ME SOLVE THIS!!!!!!

5/X+6+2/X^2+7X+6=3/X+1
Hello, I hope that someone can help with these problems.

The first one is how to maximize and minimize these equations,and use the graph method and the analytical method to solv