blaiset
let f(x) =3x+10
For what value of x does f(x) = x



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just.chris
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substitute x for f(x) and solve for x

liza2
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If f(x)=x, then
x = 3x + 10
Can you solve from here?

blaiset
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just.chris and liza2
... so, x=3x+10 ?
x=5
correct?

blaiset
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sorry... x=5

just.chris
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Yup!

blaiset
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cool... thanks gang