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2.17(3.58-4.2x)=18.9-(x-4)
We move all terms to the left:
2.17(3.58-4.2x)-(18.9-(x-4))=0
We add all the numbers together, and all the variables
2.17(-4.2x+3.58)-(18.9-(x-4))=0
We multiply parentheses
-8.68x-(18.9-(x-4))+7.7686=0
We calculate terms in parentheses: -(18.9-(x-4)), so:We get rid of parentheses
18.9-(x-4)
determiningTheFunctionDomain -(x-4)+18.9
We get rid of parentheses
-x+4+18.9
We add all the numbers together, and all the variables
-1x+22.9
Back to the equation:
-(-1x+22.9)
-8.68x+1x-22.9+7.7686=0
We add all the numbers together, and all the variables
-7.68x-15.1314=0
We move all terms containing x to the left, all other terms to the right
-7.68x=15.1314
x=15.1314/-7.68
x=-1+1/1.030678798615
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