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35=5-21x
We move all terms to the left:
35-(5-21x)=0
We add all the numbers together, and all the variables
-(-21x+5)+35=0
We get rid of parentheses
21x-5+35=0
We add all the numbers together, and all the variables
21x+30=0
We move all terms containing x to the left, all other terms to the right
21x=-30
x=-30/21
x=-1+3/7
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