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Find the value of x so that function has the given value.
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Find the value of x so that function has the given value.

User Vasavi
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\begin{gathered} (b) \\ m(x)=4x+15 \\ \text{Here}\Rightarrow m(x)=7 \\ So, \\ 7=4x-15 \\ 4x=15+7 \\ 4x=22 \\ x=(22)/(4) \\ x=(11)/(2) \\ x=5.5 \end{gathered}

User Animesh Mangla
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