20=40+k

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Solution for 20=40+k equation:


20=40+k

We simplify the equation to the form, which is simple to understand 
20=40+k

We move all terms containing k to the left and all other terms to the right. 
-1k=+40-20

We simplify left and right side of the equation. 
-1k=+20

We divide both sides of the equation by -01 to get k. 
k=-20

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