80x+280=100x+200

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Solution for 80x+280=100x+200 equation: 



80x+280=100x+200

We move all terms to the left:

80x+280-(100x+200)=0

We get rid of parentheses

80x-100x-200+280=0

We add all the numbers together, and all the variables

-20x+80=0

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

-20x=-80

x=-80/-20

x=+4

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