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To solve these simulataneous equations we need to use substitution:If 2x + y = 13 then y = 13 - 2xTherefore 3x - y = 12 can be rewritten as 3x - (13 - 2x) = 12We can expa...

Real politik is the political approach of self-sufficiency. Decisions on public policy, when approached from a position of real politik, are not afforded time for sympathy or compassion. Rather, real p...

The best way to tackle this is to practice strictly with time before the exam. I understand your frustration with the time limit especially when you know a lot. Doing loads of essay plans is very impor...

In order to write a good paragraph for an essay you should use the PEACE paragraph. This is writing the point you want to make to answer the question and explaining th...

If we first calculate 30% of £4 to work out how much the price of the book has been reduced by.10% of £4 is £0.40. We know 30% will be this value multiplied by 3. Therefore 30% of £4 is £1.20.Now that we ...