In the lab, Christine has two solutions that contain alcohol and is mixing them with each other. She uses 400 milliliters less o
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Answer:
The value of 2n - 2 is 4.
Step-by-step explanation:
Given the equation
Subtract 7 from both sides of the equation
Simplify
Now substituting n = 3 in the equation
2n - 2 = 2(3) - 2
= 6 - 2
= 4
Therefore, the value of 2n - 2 is 4.