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3.44=6.21+x
We move all terms to the left:
3.44-(6.21+x)=0
We add all the numbers together, and all the variables
-(x+6.21)+3.44=0
We get rid of parentheses
-x-6.21+3.44=0
We add all the numbers together, and all the variables
-1x-2.77=0
We move all terms containing x to the left, all other terms to the right
-x=2.77
x=2.77/-1
x=-2+0.77/1
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