The value of the expression is [tex]-18\frac{1}{2}[/tex].
We have to evaluate, the expression 15x+4 for x = − 1 1/2. .
According to the question,
Expression; 15x + 4
Evaluate the expression for,
[tex]x = - 1 \dfrac{1}{2}[/tex]
Therefore,
[tex]x = - 1 \frac{1}{2}[/tex] also written as,
[tex]x = -\dfrac{3}{2}[/tex]
Then,
The value of the expression,
[tex]15x+ 4[/tex]
Substitute the value of x in the given expression,
[tex]=15x+ 4 \\\\= 15[\dfrac{-3}{2}] + 4\\\\= \dfrac{-45}{2} + 4\\\\= \dfrac{-45+8}{2}\\\\= \dfrac{-37}{2}\\\\= -18\dfrac{1}{2}[/tex]
Hence, The value of the expression is [tex]-18\frac{1}{2}[/tex].
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