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2(4+3)-13=2(18-K)
We move all terms to the left:
2(4+3)-13-(2(18-K))=0
We add all the numbers together, and all the variables
-(2(-1K+18))-13+27=0
We add all the numbers together, and all the variables
-(2(-1K+18))+14=0
We calculate terms in parentheses: -(2(-1K+18)), so:We get rid of parentheses
2(-1K+18)
We multiply parentheses
-2K+36
Back to the equation:
-(-2K+36)
2K-36+14=0
We add all the numbers together, and all the variables
2K-22=0
We move all terms containing K to the left, all other terms to the right
2K=22
K=22/2
K=11
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