7(5k+10)+7k=-10-10-3k

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Solution for 7(5k+10)+7k=-10-10-3k equation: 



7(5k+10)+7k=-10-10-3k

We move all terms to the left:

7(5k+10)+7k-(-10-10-3k)=0

We add all the numbers together, and all the variables

7(5k+10)+7k-(-3k-20)=0

We add all the numbers together, and all the variables

7k+7(5k+10)-(-3k-20)=0

We multiply parentheses

7k+35k-(-3k-20)+70=0

We get rid of parentheses

7k+35k+3k+20+70=0

We add all the numbers together, and all the variables

45k+90=0

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

45k=-90

k=-90/45

k=-2

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