Solving Equations - Maths GCSE Revision
GCSE Physics Equations. A complete list of equations for GCSE Physics Exam (All Calculations�). This is a list of the equations which you might need to use for your GCSE Physics Exam. Click on the link for more information. At the bottom of the page there are links to equations which the different examination boards have used in the past. These links will take you to a page which you can print if you want to so that you can revise these equations. Electricity. P = V x I. power = voltage x current.� AQA. Foundation. Higher. AQA GCSE Maths. A GCSE course with problem-solving and assessment at its core. Secondary & FE.� Foundation and Higher Student Books approved by AQA. The only AQA GCSE course officially powered by MyMaths, with direct links to myboat010 boatplans resources. Specifically developed to support problem-solving, fluency and reasoning - to enable a deep Equations For Maths Paper 2 001 understanding of maths. Build students' confidence with regular assessment and a wealth of practice questions. Separate sections for skills and applications help students focus their learning where it's needed most. Exam questions organised by topic, model answers & video solutions for AQA GCSE () Maths. The perfect revision resource - try it for yourself!

Equations that have more than one unknown can have an infinite number of solutions. To be able to solve an equation like this, another equation needs to be used alongside it.

That way it is possible to find the only pair of values that solve both equations. These are known as simultaneous equations. An example of this is:. The most common method for solving simultaneous equations is the elimination method which means one of the unknowns will be removed from each equation. The remaining unknown can then be calculated. This can be done if the coefficient of one of the letters is the same in both equations, regardless of the sign. Solve the following simultaneous equations:.

First, identify which unknown has the same coefficient. The inverse of adding 9 is subtracting 9, so subtract 9 from both sides:.

Check the answers by substituting both values into the other original equation. If the equation balances, then the answers are correct:. Simultaneous equations Equations that have more than one unknown can have an infinite number of solutions. Solving simultaneous equations by elimination The most common method for solving simultaneous equations is the elimination method which means one of the unknowns will be removed from each equation.


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