(20x+100)-20=380

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Solution for (20x+100)-20=380 equation: 



(20x+100)-20=380

We move all terms to the left:

(20x+100)-20-(380)=0

We add all the numbers together, and all the variables

(20x+100)-400=0

We get rid of parentheses

20x+100-400=0

We add all the numbers together, and all the variables

20x-300=0

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

20x=300

x=300/20

x=15

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