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First expand out the brackets: 5x-15 = 4y -3xy Then re-arrange to bring all the x terms to one side: 5x+3xy = 4y +15 Now factorise: x(5+3y) = 4y + 15 Now we have isolated the x term, we can divide both si...

First you need to understand what an index (or power) is. It’s just a compact way of writing a number multiplied by itself a number of times. For example:

 3^4...

In article 'X', we can see that the writer uses onomatopaeia to bring to life the effects of the pain. Coupled with further similies and metaphors, the vibrant language engages the reader and effectively ...

Rossetti's portrayal of the strength and power of women in 'Maude Clare' is particularly interesting considering that the prevailing view in the Victorian era was that women should be more submis...

(1)   6x + 2y = -3

(2)   4x - 3y = 11

Multiply by 3 so that the coefficients of y are the same

3 x (1)    18x + 6y = -9

3 x (2)    8x - 6y = 22

Add these 2 together to e...