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Explain how to solve simulatentous equations.

A simultaneous equation is an equation with 2 unknowns( X and Y). You will have 2 seperate equations. By adding or subtracting the 2 equations, eliminate one of the unknowns(X0). You are now left with one un...
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Answered by Parth P. • Maths tutor
4634 Views

How do you change the subject of the formula?

​All that changing the subject of the formula means is basically getting a letter on its own on one side of the equation. To begin, let's take a relatively simple example. Make x the subject of the formula: ...
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Answered by Robbie T. • Maths tutor
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Jill takes out a loan of £6000 to get a car. The loan has a compound interest of 3% and she takes it out for 4 years. a) How much interest has Jill accrued after 2 years? b) What is the total amount to be paid after 4 years?

There are 3 rules to answering Maths questions: Am I actually answering the question? Have I answered the whole question? (the question above has two parts) UNITS! With this question, it's important to reali...
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Answered by Rebecca W. • Maths tutor
5405 Views

solve x/2 + 11 = 15

whenever we solve an equation we want to get the unknown (x) alone on one side of the equals sign, but remember whatever we do to one sign of the equation, we have to do to the other. So lets start by subtra...
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Answered by Samir P. • Maths tutor
7233 Views

Solve this inequality 4y - 3 ≥ 5

1 - We treat an inequality sign like an equals sign (unless we divide by a negative number). 2 - Rearrange the inequality to get all the ys on one side and all the numbers on the other side. 3 - Simplify to ...
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Answered by Gadah A. • Maths tutor
8682 Views