3n+8+5n+21=18

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Solution for 3n+8+5n+21=18 equation: 



3n+8+5n+21=18

We move all terms to the left:

3n+8+5n+21-(18)=0

We add all the numbers together, and all the variables

8n+11=0

We move all terms containing n to the left, all other terms to the right

8n=-11

n=-11/8

n=-1+3/8

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