Eight less than three times a number is less than or equal to 79. What is the number?

1 Answer
SoySoy4444
May 16, 2017

#x<=29#

Explanation:

Let me rephrase the wordy sentence into a mathematical equation.
Let #x# be the unknown number.
"Eight less than three times a number" : #3x-8#
"Is less than or equal to 79" : #<=79#
All together : #3x-8<=79#
First, to get the #3x# on its own, add 8 to both sides.
#3x<=87#
Then, divide by 3 to isolate #x#
#x<=29#
This is the answer. The number is less than or equal to #29".

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