RyanNicks RyanNicks

22-09-2017
Mathematics

contestada

Six times the sum of a number and 3 is 12 less than 12 times the number. Find the number.

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biscuitsandtea biscuitsandtea

22-09-2017

6x+3=12x-12
15=6x
5/2=x

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choixongdong choixongdong

22-09-2017

sum of a number and 3: x + 3
Six times the sum of a number and 3: 6(x+3)
12 less than 12 times the number: 12x - 12
so equation

6(x+3) = 12x - 12
6x + 18 = 12x - 12
12x - 6x = 18 + 12
6x = 30
x = 5

answer
the number is 5

Answer Link

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