4x+80=400

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Solution for 4x+80=400 equation: 



4x+80=400

We move all terms to the left:

4x+80-(400)=0

We add all the numbers together, and all the variables

4x-320=0

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

4x=320

x=320/4

x=80

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