What is algebra and why do we use it?

Algebra is a part of mathematics in which letters or symbols are used to represent either a known constant or an unknown value. Algebra is often used within formulae in which we can extrapolate an answer, an example being the 'Quadratic Equation'.

Related Maths GCSE answers

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Find the coordinates where the curve y=x^2+6x+5 crosses the x-axis.


Solve the following simulatenous equation to find the values of both x and y: 5x+2y=16 3x-y=14


Solve the simultaneous equations..... 3x - y + 3 = 11 & 2x^2 + y^2 + 3 = 102 where X and Y are both positive integers.


Solve the Simultaneous equations '2x-3y=24' and '6x+2y=-5'


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