-300-(-4x)=+-8x

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Solution for -300-(-4x)=+-8x equation: 



-300-(-4x)=+-8x

We move all terms to the left:

-300-(-4x)-(+-8x)=0

We add all the numbers together, and all the variables

-(-4x)-(-8x)-300=0

We get rid of parentheses

4x+8x-300=0

We add all the numbers together, and all the variables

12x-300=0

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

12x=300

x=300/12

x=25

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