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Find x and y without a calculator! No Desmos! Make sure that this one is on your work that you are uploading.

Find x and y without a calculator! No Desmos! Make sure that this one is on your work-example-1

1 Answer

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Given:

Given the system of equations:


\begin{gathered} y=4x \\ 2x+3y=-28 \end{gathered}

Required: Values of x and y

Step-by-step explanation:

Substitute 4x for y into the equation 2x + 3y = -28.


\begin{gathered} 2x+3\cdot4x=-28 \\ 14x=-28 \\ x=-2 \end{gathered}

Plug the obtained value of y into y = 4x.


\begin{gathered} y=4(-2) \\ =-8 \end{gathered}

Solution is (x, y) = (-2, -8).

Final Answer: Solution is (-2, -8).

User Jonathan Callen
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