4k+k=10+30

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Solution for 4k+k=10+30 equation: 



4k+k=10+30

We move all terms to the left:

4k+k-(10+30)=0

We add all the numbers together, and all the variables

4k+k-40=0

We add all the numbers together, and all the variables

5k-40=0

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

5k=40

k=40/5

k=8

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