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7=3x-4-2(x+2)
We move all terms to the left:
7-(3x-4-2(x+2))=0
We calculate terms in parentheses: -(3x-4-2(x+2)), so:We get rid of parentheses
3x-4-2(x+2)
determiningTheFunctionDomain 3x-2(x+2)-4
We multiply parentheses
3x-2x-4-4
We add all the numbers together, and all the variables
x-8
Back to the equation:
-(x-8)
-x+8+7=0
We add all the numbers together, and all the variables
-1x+15=0
We move all terms containing x to the left, all other terms to the right
-x=-15
x=-15/-1
x=+15
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