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3x + 2y = 6, 5x+3y=11, solve for x and y.

There are two main methods to solve simultaneous equations. Elimination and Substitution. Usually one is easier and quicker than the other, but this is dependent upon the question you face in the exam so I w...
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Answered by Amy F. • Maths tutor
11447 Views

Solve algebraically the simultaneous equations 3x + 2y = 15 and 2x + 4y = 10

Firstly, we need to eliminate on of the terms of the equation, either the x or the y term, by combining the two equations into one equation. To do this we can add or subtract the two equations from each othe...
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Answered by Eleanor B. • Maths tutor
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How would belief in God affect an individual's attitude towards the environment?

For a question like this, you would need to understand what Christian teachings say about the environment (e.g. stewardship), and how a Christian would reflect this in their daily life. It may be important t...
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2061 Views

How do I know which rule of trigonometry to apply in a question?

There are four trigonometry rules which you need to know: Pythagoras, SohCahToa, the cosine rule and the sine rule. The first two only work on right angle triangles, and the second two apply to non-right ang...
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Answered by Seb P. • Maths tutor
9051 Views

Find the values of X and Y from the simultaneous equations: 1) 2x + 5y = 33 2) x + 3y = 19

2x + 5y = 33 2) x + 3y = 19 multiply equation 2 by a factor of 2 giving you 2x + 6y = 38 Your two equation are now: 1) 2x + 5y = 33 3) 2x + 6y = 38 Subtract 3 from 1 to eliminate the x's Giving you Y = 5 Now...
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Answered by Chris C. • Maths tutor
3837 Views