24-01-2015
Mathematics

Answered

explain why x+8=12 and 12-x=8 have the same solution ?

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Аноним Аноним

24-01-2015

[tex]x+8=12\ \ \ \ |subtract\ "x"\ from\ both\ sides\\\\8=12-x\Rightarrow 12-x=8\\\\ Those\ equations\ are\ equivalent\ (They\ have\ the\ same\ solution\ x=4)[/tex]

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Lysielulu Lysielulu

24-01-2015

because the equations are equivalent, either way you solve them, you will have the same outcome

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