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09-12-2019
Mathematics

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If 12=1/3x+5, then x=21. Complete the proof.

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marcthemathtutor marcthemathtutor

09-12-2019

Step-by-step explanation:

12=(1/3)x+5 (subtract 5 from both sides)

12 - 5 = (1/3)x

7 = (1/3)x (multiply both sides by 3 and rearrange)

x = 7 (3)

x = 21 (proven)

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