2k+9=7-2k

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Solution for 2k+9=7-2k equation: 



2k+9=7-2k

We move all terms to the left:

2k+9-(7-2k)=0

We add all the numbers together, and all the variables

2k-(-2k+7)+9=0

We get rid of parentheses

2k+2k-7+9=0

We add all the numbers together, and all the variables

4k+2=0

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

4k=-2

k=-2/4

k=-1/2

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