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Evaluate the expression when x = -7/15 and y = 2/5x - 4yWrite your answer in simplest form.

User Lop Hu
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1 Answer

4 votes

Given the expression:


x-4y

Let's evaluate the expression when x = -7/15 and y = 2/5

To evaluate the expression, substitute the values for the variables into the expression:


\begin{gathered} -(7)/(15)-(4*(2)/(5)) \\ \\ -(7)/(15)-(8)/(5) \\ \\ (1(-7)-3(8))/(15) \\ \\ =(-7-24)/(15) \\ \\ \end{gathered}

Solving further:


\begin{gathered} \frac{}{}(-31)/(15) \\ \\ =-2(1)/(15) \end{gathered}

ANSWER:


-2(1)/(15)

User Bina
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