7.x-9=40

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Solution for 7.x-9=40 equation: 



7.x-9=40

We move all terms to the left:

7.x-9-(40)=0

We add all the numbers together, and all the variables

7.x-49=0

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

7.x=49

x=49/7.

x=7

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