-15x+8+(-9x)-8=-2x+21-(-7x)+240

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Solution for -15x+8+(-9x)-8=-2x+21-(-7x)+240 equation: 



-15x+8+(-9x)-8=-2x+21-(-7x)+240

We move all terms to the left:

-15x+8+(-9x)-8-(-2x+21-(-7x)+240)=0

We add all the numbers together, and all the variables

-15x+(-9x)-(-2x+21-(-7x)+240)=0

We get rid of parentheses

-15x-9x-(-2x+21-(-7x)+240)=0



We calculate terms in parentheses: -(-2x+21-(-7x)+240), so:

-2x+21-(-7x)+240

determiningTheFunctionDomain
-2x-(-7x)+21+240

We add all the numbers together, and all the variables

-2x-(-7x)+261

We get rid of parentheses

-2x+7x+261

We add all the numbers together, and all the variables

5x+261

Back to the equation:

-(5x+261)



We add all the numbers together, and all the variables

-24x-(5x+261)=0

We get rid of parentheses

-24x-5x-261=0

We add all the numbers together, and all the variables

-29x-261=0

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

-29x=261

x=261/-29

x=-9

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