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To work out simultaneous equations, the aim is to remove one letter from the equations, i.e. Remove the y's so you have only x's and numbers (or vice versa). One way to do this is to get the coefficient in f...

Several factors contributed to the rise of Hitler during the early 20th century, culminating in his domination of Germany, and the collapse of the Weimar Republic. Firstly it is important to consider the sta...

We need to have either the same number of x's or the same number of y's in each equation so that we can add or subtract them to be left with just x or just y. We can do this by multiplying the second equatio...

1) Let x=0.565656... 2) Thus 100x=56.565656... 3) Subtracting equation 1) from 2) gives: 99x=56 4) Rearrange for x: x=56/99, Also x=0.565656... from 1) Therefore 0.565656...=56/99

Question 4 is the first instance in the paper where a student is required to use more than one source, and again the first question to concentrate in-depth on the effects of language. I would advise you to f...