→ 6x² - 2x - 20
→ 6x² + 10x - 12x - 20
→ x(6x + 10 ) - 2 (6x + 10)
→ (6x + 10) (x - 2) .
for
6x - 10 = 0
6x = 10
for x - 2
x = 2
If the average of 12 numbers is 14 and the average of 4 of those numbers is 18, what is the average of the other eight numbers?
1 answer:
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The right answer is: Add 1, then divide by 6
Step-by-step explanation:
Given equation is:
The solution of equation means that we have to isolate the variable on one side of the equation
So,
We will solve the equation to write the sequence of operations
So,
Adding 1 on both sides
Dividing both sides by 6
We can see that the sequence is: Add 1 then divide by 6
Hence,
The right answer is: Add 1, then divide by 6
Keywords: Linear equation, variable
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