12x+7x-9x=3x+5-4(2-x)

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Solution for 12x+7x-9x=3x+5-4(2-x) equation: 



12x+7x-9x=3x+5-4(2-x)

We move all terms to the left:

12x+7x-9x-(3x+5-4(2-x))=0

We add all the numbers together, and all the variables

12x+7x-9x-(3x+5-4(-1x+2))=0

We add all the numbers together, and all the variables

10x-(3x+5-4(-1x+2))=0



We calculate terms in parentheses: -(3x+5-4(-1x+2)), so:

3x+5-4(-1x+2)

determiningTheFunctionDomain
3x-4(-1x+2)+5

We multiply parentheses

3x+4x-8+5

We add all the numbers together, and all the variables

7x-3

Back to the equation:

-(7x-3)



We get rid of parentheses

10x-7x+3=0

We add all the numbers together, and all the variables

3x+3=0

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

3x=-3

x=-3/3

x=-1

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