Daniellehall Daniellehall

28-06-2017
Mathematics

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One more than 3 times a number is the same as 5 times the number, decreased by 15. Find the number

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musiclover10045 musiclover10045

29-06-2017

3x+1 = 5x-15

3x+1-5x = -15

-2x+1 = -15

-2x=-15-1

-2x=-16

x = 8

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