4x-(-2x)+3=(-x)+(-18)

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Solution for 4x-(-2x)+3=(-x)+(-18) equation: 



4x-(-2x)+3=(-x)+(-18)

We move all terms to the left:

4x-(-2x)+3-((-x)+(-18))=0

We add all the numbers together, and all the variables

4x-(-2x)-((-1x)+(-18))+3=0

We get rid of parentheses

4x+2x-((-1x)+(-18))+3=0



We calculate terms in parentheses: -((-1x)+(-18)), so:

(-1x)+(-18)

We add all the numbers together, and all the variables

(-1x)-18

We get rid of parentheses

-1x-18

Back to the equation:

-(-1x-18)



We add all the numbers together, and all the variables

6x-(-1x-18)+3=0

We get rid of parentheses

6x+1x+18+3=0

We add all the numbers together, and all the variables

7x+21=0

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

7x=-21

x=-21/7

x=-3

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