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Find the value of x if the arithmetic mean of 3 and 3x+5 is 8?

Sagot :

JohnAnkrahidn

Answer:

3x

Step-by-step explanation:

3x+5=8

Group like terms

3x=8-5

3x=3

Divide both side by the co-efficient of x which is 3

3x/3=3/3

x=1

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