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-10+5/2l=-30
We move all terms to the left:
-10+5/2l-(-30)=0
Domain of the equation: 2l!=0We add all the numbers together, and all the variables
l!=0/2
l!=0
l∈R
5/2l+20=0
We multiply all the terms by the denominator
20*2l+5=0
Wy multiply elements
40l+5=0
We move all terms containing l to the left, all other terms to the right
40l=-5
l=-5/40
l=-1/8
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