Question 1027842
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We are looking for the value of x when f(x)=3
Let f(x)=y=3; Let x=a 
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y={2-3x}/{5-2x}
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3=(2-3x)/(5-2x) . Multiply each side by (5-2x)
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15-6x=2-3x . Add 6x to each side.
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15=2+3x . Subtract 2 from each side.
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13=3x . Divide each side by 3.
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13/3=x
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ANSWER a=13/3

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CHECK:
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{{{f(a)=(2-3a)/(5-2a)}}}
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{{{3=((6/3)-(39/3))/((15/3)-(26/3))}}}
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{{{3=(-33/3)/(-11/3)}}}
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{{{3=-33/-11}}}
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{{{3=3}}}



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