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-7=-4.1+a
We move all terms to the left:
-7-(-4.1+a)=0
We add all the numbers together, and all the variables
-(a-4.1)-7=0
We get rid of parentheses
-a+4.1-7=0
We add all the numbers together, and all the variables
-1a-2.9=0
We move all terms containing a to the left, all other terms to the right
-a=2.9
a=2.9/-1
a=-2+0.9/1
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