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There are a lot of facts to remember at GCSE for History. The best way to make sure that you know the facts you want to by the exam is to start learning them early so that they go into your long term memo...

Firstly, let’s consider the concept of producer surplus. This can be defined as the difference between the price producers are willing to supply their goods/ services at and the market price (the price th...

Multiply both sides of the equation x + 2y = 13 by 4 to get 4x + 8y = 52. Subtract 4x - 3y = 8 from 4x + 8y = 52 to get 11y = 44. Divide both sides of 11y = 44 by 11 to get y = 4. Since we now know y = ...

The first step is to remove the fractions in the equation, as the equation is easier to solve when there are only whole numbers.To remove the first fraction we should times the entire equation by 5 ----&g...

1. 'x < 4' simply means that x is less than 4.2) However, x ≤ 4 means that it is less than or equal to 4. So if you have x = 3, 2, 1, 0 then the first term, 'x < 4' appliesbut if...