n-52=21
n+52=+52
N=72
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Answer:
n = 64
Step-by-step explanation:
Isolate the variable, n. Note the equal sign, what you do to one side, you do to the other.
Add 52 to both sides of the equation:
n - 52 (+52) = 12 (+52)
n = 12 + 52
n = 64 is your answer.
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