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OpenStudy (anonymous):
f(x) = 3x + 9 = 2x + 4 when f(3)
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OpenStudy (anonymous):
that is the question
OpenStudy (anonymous):
Do i just plug in 3 to x?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
so 3(3) + 9 = 2(3) + 4 ?
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