45=7-2k

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Solution for 45=7-2k equation: 



45=7-2k

We move all terms to the left:

45-(7-2k)=0

We add all the numbers together, and all the variables

-(-2k+7)+45=0

We get rid of parentheses

2k-7+45=0

We add all the numbers together, and all the variables

2k+38=0

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

2k=-38

k=-38/2

k=-19

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