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x=81-(13x+287)
We move all terms to the left:
x-(81-(13x+287))=0
We calculate terms in parentheses: -(81-(13x+287)), so:We get rid of parentheses
81-(13x+287)
determiningTheFunctionDomain -(13x+287)+81
We get rid of parentheses
-13x-287+81
We add all the numbers together, and all the variables
-13x-206
Back to the equation:
-(-13x-206)
x+13x+206=0
We add all the numbers together, and all the variables
14x+206=0
We move all terms containing x to the left, all other terms to the right
14x=-206
x=-206/14
x=-14+5/7
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