4=7.l-3.l

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Solution for 4=7.l-3.l equation:



4=7.l-3.l
We move all terms to the left:
4-(7.l-3.l)=0
We add all the numbers together, and all the variables
-(+4l)+4=0
We get rid of parentheses
-4l+4=0
We move all terms containing l to the left, all other terms to the right
-4l=-4
l=-4/-4
l=1

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