103=4(7+2k)+7k

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Solution for 103=4(7+2k)+7k equation: 



103=4(7+2k)+7k

We move all terms to the left:

103-(4(7+2k)+7k)=0

We add all the numbers together, and all the variables

-(4(2k+7)+7k)+103=0



We calculate terms in parentheses: -(4(2k+7)+7k), so:

4(2k+7)+7k

We add all the numbers together, and all the variables

7k+4(2k+7)

We multiply parentheses

7k+8k+28

We add all the numbers together, and all the variables

15k+28

Back to the equation:

-(15k+28)



We get rid of parentheses

-15k-28+103=0

We add all the numbers together, and all the variables

-15k+75=0

We move all terms containing k to the left, all other terms to the right

-15k=-75

k=-75/-15

k=+5

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