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7^3x-1=49x+1
We move all terms to the left:
7^3x-1-(49x+1)=0
We get rid of parentheses
7^3x-49x-1-1=0
We add all the numbers together, and all the variables
-49x+7^3x-2=0
We move all terms containing x to the left, all other terms to the right
-49x+7^3x=2
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