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30x(64-400)=x
We move all terms to the left:
30x(64-400)-(x)=0
We add all the numbers together, and all the variables
30x(-336)-x=0
We add all the numbers together, and all the variables
-1x+30x(-336)=0
We multiply parentheses
-1x-10080x=0
We add all the numbers together, and all the variables
-10081x=0
x=0/-10081
x=0
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