Genius1R Genius1R

22-05-2020
Mathematics

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The average of 8 and x = 3. What is x?

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wegnerkolmp2741o wegnerkolmp2741o

22-05-2020

Answer:

x= -2

Step-by-step explanation:

The average of 8 and x

(8+x)/2

is 3

(8+x)/2 = 3

Multiply each side by 2

(8+x)/2 *2 = 3*2

8+x = 6

Subtract 8 from each side

8+x-8 = 6-8

x = -2

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