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Maths
GCSE

Find the highest common factor (HCF) of 12 and 18.

We start off by drawing attention to the first number in the question, 12. The number can be broken down into multiples by dividing it by the lowest number (that isn't 1): This breakdown is as follows:...

Answered by Jake J. Maths tutor
33987 Views

How do we solve simultaneous equations, say for example x + 4y = 20 and 2x - 2y = 10 ?

When it comes to simultaneous equations, there are two methods that we can use to solve them. The first method is called substitution, where we make one of the variables the subject in on...

Answered by Jonathan W. Maths tutor
6468 Views

What are the different methods of solving quadratic equations?

For your maths GCSE it is important that you understand the three main methods of solving quadtratics: factorisation, completing the square, and using the quadratic formula.

1. Fa...

Answered by Lois M. Maths tutor
10140 Views

Solve the simultaneous equations y= 3x +4 and y= 2x + 5

'Solve' means to find the values of the unknown variables in the equations, commonly letters, which in this question are x and y.Step 1: Put equations equal to eachotherB...

Answered by Vicky C. Maths tutor
11808 Views

Solve the simultaneous equations: 2x + 3y = 28 and x + y = 11

As the number of equations is the same as the number of unknowns, there is exactly one solution!We start by labelling the two equations:2x + 3y = 28 (1)x + y = 11 (2)There is more than one way to approach...

Answered by Harry H. Maths tutor
11582 Views

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