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How to work with Simultaneous Equations

Before you start revising how to complete simultaneous equations – check out these fun Maths facts:

Plus and minus signs were actually used as early as 1489 A.D.

Zero is the only number you can not represent using Roman numerals

Of all the shapes with the same perimeter – a circle has the largest area. And, amongst all the shapes with the same area, the circle has the shortest perimeter!

Multiplying ones will always produce palindromic numbers, that is numbers that read the same backwards as forwards. If you multiply 111,111,111 × 111,111,111 you get 12,345,678,987,654,321. And that works all the way back down to 11 x 11 (121) or just 1 x 1 (1).

Don’t dream of being a billionaire – aim for earning a quadrillion, quintillion or sextillion!

Prime numbers actually help cicadas survive! There are over 3000 species of cicada, split into two types. Annual cicadas are seen every year whereas periodical cicadas are not seen for decades. They incubate underground for long periods of time before coming out to mate. Sometimes they spend 13 years underground, sometimes 17, both of which are prime numbers. Scientists believe that cicadas evolved this way in order to avoid contact with predators with more round numbered life-cycles.


For help with simultaneous equations, try our new guide “How to work with Simultaneous Equations”. It includes an explanation of how to solve these equations by elimination. You can revise how to form and solve simultaneous equations from problem questions.  You will also find questions to try, and answers to check understanding.
Click the picture below to see the guide.
Simultaneous equations
Come back and check our blog page for more resources to help you improve your understanding of different topics in various subjects.   New Maths and Science guides will be coming soon.

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