7x-3x=-6(x+20)+5(-3-3x)

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Solution for 7x-3x=-6(x+20)+5(-3-3x) equation: 



7x-3x=-6(x+20)+5(-3-3x)

We move all terms to the left:

7x-3x-(-6(x+20)+5(-3-3x))=0

We add all the numbers together, and all the variables

7x-3x-(-6(x+20)+5(-3x-3))=0

We add all the numbers together, and all the variables

4x-(-6(x+20)+5(-3x-3))=0



We calculate terms in parentheses: -(-6(x+20)+5(-3x-3)), so:

-6(x+20)+5(-3x-3)

We multiply parentheses

-6x-15x-120-15

We add all the numbers together, and all the variables

-21x-135

Back to the equation:

-(-21x-135)



We get rid of parentheses

4x+21x+135=0

We add all the numbers together, and all the variables

25x+135=0

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

25x=-135

x=-135/25

x=-5+2/5

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