3n+9+5n+3=4

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Solution for 3n+9+5n+3=4 equation: 



3n+9+5n+3=4

We move all terms to the left:

3n+9+5n+3-(4)=0

We add all the numbers together, and all the variables

8n+8=0

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

8n=-8

n=-8/8

n=-1

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