4n + 1 = 12 + 5n
First, let's get all n terms on one side and all non-n terms on the other side.
Start off by subtracting 4n from each side.
1 = 12 + n
Now subtract 12 from each side.
-11 = n
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12+4n = 2n12+4n-4n = 2n-4n12 = -2n-1/2(12 = -2n)-6 = n
n= -2
5n-2+2=4n 5n=4n n=0
4n/7 + 8 = 20 subtract 8 from each side: 4n/7 = 12 multiply each side by 7: 4n = 84 n = 21
4n+13=1 -13 -134n=-12/4 /4n=-3