10x+100=-20x-200

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Solution for 10x+100=-20x-200 equation: 



10x+100=-20x-200

We move all terms to the left:

10x+100-(-20x-200)=0

We get rid of parentheses

10x+20x+200+100=0

We add all the numbers together, and all the variables

30x+300=0

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

30x=-300

x=-300/30

x=-10

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