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7x+1=7(3)+1
We move all terms to the left:
7x+1-(7(3)+1)=0
We add all the numbers together, and all the variables
7x+1-74=0
We add all the numbers together, and all the variables
7x-73=0
We move all terms containing x to the left, all other terms to the right
7x=73
x=73/7
x=10+3/7
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