Question

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

Answer 1

Let the number be x

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Interpret the statement
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$\dfrac{1}{3}x + 7 = 18$

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Solve x 
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$\dfrac{1}{3}x + 7 - 7 = 18 - 7 \Longleftarrow {\text {minus 7 from both size}$

$\dfrac{1}{3}x = 11$

$\dfrac{1}{3}x \times 3 = 11 \times 3 \Longleftarrow {\text {multiply by 3 on both side}$

 $x = 33$

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Answer: x = 33
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