madisongrace27 madisongrace27

07-09-2014
Mathematics

Answered

Subtracting a number from 30 gives the same result as adding the number to 18. What is the number?

Answer :

karkar99 karkar99

07-09-2014

30 - 6 = 24
18 + 6 = 24

So the number is 6

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Аноним Аноним

07-09-2014

[tex]x-the\ number\\\\30-x=18+x\ \ \ \ \ |add\ "x"\ to\ both\ sides\\\\30=18+2x\ \ \ \ \ \ |subtract\ 18\ from\ both\ sides\\\\12=2x\ \ \ \ \ \ \ \ |divide\ both\ sides\ by\ 2\\\\\boxed{x=6}[/tex]

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