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54=9x+4
We move all terms to the left:
54-(9x+4)=0
We get rid of parentheses
-9x-4+54=0
We add all the numbers together, and all the variables
-9x+50=0
We move all terms containing x to the left, all other terms to the right
-9x=-50
x=-50/-9
x=5+5/9
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