7k-10+3k=40

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Solution for 7k-10+3k=40 equation: 



7k-10+3k=40

We move all terms to the left:

7k-10+3k-(40)=0

We add all the numbers together, and all the variables

10k-50=0

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

10k=50

k=50/10

k=5

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