addisonjacebund addisonjacebund

09-08-2017
Mathematics

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Four times the difference of a number and seven is 12

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musiclover10045 musiclover10045

09-08-2017

4(x-7)=12=

4x-28=12

add 28 to both sides

4x=40

x =40/4 = 10

x = 10

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