Answer:
<h3>

</h3>
Step-by-step explanation:
Let the missing number be 'x'
⇒
Distribute x through the parentheses
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Swap the sides of the equation
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Add the numbers
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Collect like terms
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Divide both sides of the equation by 8
⇒
Calculate
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Hope I helped!
Best regards!
Answer:
The mean would be 85 :)
Step-by-step explanation: