2x-39=40

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Solution for 2x-39=40 equation: 



2x-39=40

We move all terms to the left:

2x-39-(40)=0

We add all the numbers together, and all the variables

2x-79=0

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

2x=79

x=79/2

x=39+1/2

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