Seven more than one–third of a number is 18. What is the number?

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dibblez46434 dibblez46434

21-03-2018
Mathematics

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Seven more than one–third of a number is 18. What is the number?

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Аноним Аноним · Answer 1 · 2018-03-21T09:34:33+01:00

Let the number be x

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Interpret the statement
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[tex]\dfrac{1}{3}x + 7 = 18 [/tex]

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Solve x
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[tex]\dfrac{1}{3}x + 7 - 7 = 18 - 7 \Longleftarrow {\text {minus 7 from both size} [/tex]

[tex]\dfrac{1}{3}x = 11[/tex]

[tex]\dfrac{1}{3}x \times 3 = 11 \times 3 \Longleftarrow {\text {multiply by 3 on both side}[/tex]

[tex]x = 33[/tex]

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Answer: x = 33
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