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If m(x) = 3(x + 4) – 2 and m (x) = 28 what is x?

User MultiRRomero
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1 Answer

12 votes
12 votes

Given the function:


m(x)=3(x+4)-2

if we have that m(x)=28, then:


\begin{gathered} m(x)=28 \\ \Rightarrow28=3(x+4)-2 \\ \Rightarrow28=3x+12-2 \\ \Rightarrow28=3x+10 \\ \Rightarrow28-10=3x \\ \Rightarrow18=3x \\ \Rightarrow x=(18)/(3)=6 \\ x=6 \end{gathered}

therefore, if m(x)=28, then x=6

User Noseratio
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