Answered

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8x-5y evaluate x= 4 and y = -9

Sagot :

We are given the following expression:

[tex]8x-5y[/tex]

We are asked to evaluate the expression at;

[tex]\begin{gathered} x=4 \\ y=-9 \end{gathered}[/tex]

To determine the numerical value of the expression at the given points we will substitute the values, like this:

[tex]8(4)-5(-9)[/tex]

Now, we solve the products:

[tex]8(4)-5(-9)=32+45[/tex]

Now, we solve the addition:

[tex]32+45=77[/tex]

Therefore, the value of the expression is 77.

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