-203=-7(9+k)

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Solution for -203=-7(9+k) equation:



-203=-7(9+k)
We move all terms to the left:
-203-(-7(9+k))=0
We add all the numbers together, and all the variables
-(-7(k+9))-203=0
We calculate terms in parentheses: -(-7(k+9)), so:
-7(k+9)
We multiply parentheses
-7k-63
Back to the equation:
-(-7k-63)
We get rid of parentheses
7k+63-203=0
We add all the numbers together, and all the variables
7k-140=0
We move all terms containing k to the left, all other terms to the right
7k=140
k=140/7
k=20

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