exam Maths Puzzle Numerical Ability

How could I solve equations like these:
8(p-2)>5p+7

And how can this be solved:
∆ABC is isosceles with base BC. If AB=3x+1 cm, AC=2x+5 cm, and BC is=x+11, find the perim

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exam Other Question

A large pump can fill a 54,000 gallon reservoir in 8 hours. Working together, the largepump and a smaller one can fill the reservoir in 6 hours. How long would it take the smaller pump to fill the reservoir by itself?
Write an algebraic expression, an equation or an inequality.

The difference of 3 times a number x and 11