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98=7(8+k)
We move all terms to the left:
98-(7(8+k))=0
We add all the numbers together, and all the variables
-(7(k+8))+98=0
We calculate terms in parentheses: -(7(k+8)), so:We get rid of parentheses
7(k+8)
We multiply parentheses
7k+56
Back to the equation:
-(7k+56)
-7k-56+98=0
We add all the numbers together, and all the variables
-7k+42=0
We move all terms containing k to the left, all other terms to the right
-7k=-42
k=-42/-7
k=+6
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