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2014-05-23T22:02:48+08:00

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
In math, variables are used to represent unknown numbers. These are usually letters from the english alphabet and greek alphabet. Different variables represent different numbers to avoid confusion.
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2014-05-25T13:37:26+08:00

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Yes it is because both are considered as numbers and you had to find it in solving algebra 


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