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Given the function m(x) = 2x – 10, find x when m(x) = -4. X = -7 x = 3 x = 2 O x- X = -18

User Segiddins
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1 Answer

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Given


m(x)=2x-10

You have to find x for m(x)=-4

To do so you have to equal the expression to -4 and solve for x


-4=2x-10

Pass "-10" to the other side of the expression by performing the inverse operation to both sides of it, that is, to add 10


\begin{gathered} -4+10=2x-10+10 \\ 6=2x \end{gathered}

Divide both sides by 2 to determine the value of x


\begin{gathered} (6)/(2)=(2x)/(2) \\ 3=x \end{gathered}

So for m(x)=-4, x=3