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In March 1917, Russian Tsar Nicholas II abdicated and was replaced by the Provisional Government. There are various reasons why the Tsarist regime collapsed but this essay will outline three possible reas...

2kx + 6ky + 4kz

=2k (x + 3y + 2z)

Since 1/5 of the class is absent, this must mean that 4/5 of the class is present. We are told that 24 pupils are present, so 4/5 of the class must equal 24 pupils. Now we need to find out how many pupils...

Historiography is a great way to boost your grade in an essay when used correctly. As well as looking at more general terms such as 'revisionist' or 'orthodox', you can look at specific historians and wha...

6a + b = 16    Equation 1
5a - 2b = 19    Equation 2

Scale up one equation so both equations have same coeffient of one variable ie 2 times Equ 1

12a + 2b = 32
5a - 2b = 19