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4=x+42/9
We move all terms to the left:
4-(x+42/9)=0
We add all the numbers together, and all the variables
-(+x+42/9)+4=0
We get rid of parentheses
-x+4-42/9=0
We multiply all the terms by the denominator
-x*9-42+4*9=0
We add all the numbers together, and all the variables
-x*9-6=0
Wy multiply elements
-9x-6=0
We move all terms containing x to the left, all other terms to the right
-9x=6
x=6/-9
x=-2/3
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