5k+4=5(k+5)-21

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Solution for 5k+4=5(k+5)-21 equation: 



5k+4=5(k+5)-21

We move all terms to the left:

5k+4-(5(k+5)-21)=0



We calculate terms in parentheses: -(5(k+5)-21), so:

5(k+5)-21

We multiply parentheses

5k+25-21

We add all the numbers together, and all the variables

5k+4

Back to the equation:

-(5k+4)



We get rid of parentheses

5k-5k-4+4=0

We add all the numbers together, and all the variables

=0

k=0/1

k=0

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