Given the expression;
[tex]w-x+y[/tex]and the values of x,y and w as;
[tex]\begin{gathered} w=-11.5 \\ x=-9 \\ y=7.4 \end{gathered}[/tex]substituting the given values;
[tex]\begin{gathered} w-x+y \\ =-11.5-(-9)+7.4 \\ =-11.5+9+7.4 \\ =4.9 \end{gathered}[/tex]Therefore, the value of the expression is;
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