-230=7k+4(-5+7k)

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Solution for -230=7k+4(-5+7k) equation:



-230=7k+4(-5+7k)
We move all terms to the left:
-230-(7k+4(-5+7k))=0
We add all the numbers together, and all the variables
-(7k+4(7k-5))-230=0
We calculate terms in parentheses: -(7k+4(7k-5)), so:
7k+4(7k-5)
We multiply parentheses
7k+28k-20
We add all the numbers together, and all the variables
35k-20
Back to the equation:
-(35k-20)
We get rid of parentheses
-35k+20-230=0
We add all the numbers together, and all the variables
-35k-210=0
We move all terms containing k to the left, all other terms to the right
-35k=210
k=210/-35
k=-6

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