Pearl98 Pearl98

03-12-2017
Mathematics

contestada

Twice the difference of a number and 3 is equal to three times the sum of the number and 3. Find the number.

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IAmAMathAddict IAmAMathAddict

03-12-2017

2 (x-3)=3 (x+3) writing it down in equation form

2x-6=3x+9 removing brackets

2x-3x=9+6 collecting like terms

-×=15 divide it by -1

x=15

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