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To solve a simultaneous equation we use a method known as elimination. We choose to 'eliminate' or remove the X or Y term. To 'eliminate' x we must firstly determine the lowest common multiple 3 and 2 (as...

For this question, it is best to first take out a factor of 2 from the equation. This will leave you with y=2(x²+2x-3). We then need to work out the two numbers that will multiply to -3 and add...

15⁰ = 1 Anything to the power of 0 is always 1. See the examples below: 10⁰ = 1; 25⁰ = 1; 50⁰ = 1.

This problem can be solved through substitution. The first equation provided in the question should be rearranged to give y=2x-2. This equation for y can be directly substituted into the second equation. ...

When solving a simultaneous equation, we will use the elimination method. This method sees us removing or ‘eliminating’ the x or y term. First we need to find the lowest common multiple of the x and y ter...