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Anonymous
So, 3 + 12 = n + 3. Subtract 3 from both sides of the equation and get
12 = n or
n = 12 if you prefer.
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3 + 9 = 12
n=3
Yes it does. Very good !
6n+3=15 6n+3-3=15-3=12 6n = 12 n=12/6 = 2
n=22 22 +12 34