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

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



12x+7x-9=3x+5-4(2-x)
We move all terms to the left:
12x+7x-9-(3x+5-4(2-x))=0
We add all the numbers together, and all the variables
12x+7x-(3x+5-4(-1x+2))-9=0
We add all the numbers together, and all the variables
19x-(3x+5-4(-1x+2))-9=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
19x-7x+3-9=0
We add all the numbers together, and all the variables
12x-6=0
We move all terms containing x to the left, all other terms to the right
12x=6
x=6/12
x=1/2

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