I think of a number and add one fourth of it to half of it and the result is twelve. What is the number I thought of?

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24 votes

Suppose that the number u were thinking about is x thus :

$(1)/(4) x + (1)/(2) x = 12 \\$

Multiply both sides by 4

$4 * ( (1)/(4) x + (1)/(2) x) = 4 * 12 \\$

Divide both sides by 3

$(3x)/(3) = (48)/(3 ) \\$

x = 16

JohannesB answered Dec 11, 2023

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