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I need help how do i figure out these steps im not supposed to be in algebra

I need help how do i figure out these steps im not supposed to be in algebra-example-1
User Aralis
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1 Answer

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replace the x in f(x) with the corresponding number!

f(3)= 3(3)-1

the answer to that one would be 8

f(2)= 3(2)-1

the answer would be 5
User Shenouda
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