4 years ago

Chris got 28 out of 35 correct in his test.

Mathematics

1 answer:

Sedaia [141]4 years ago

5 0

Answer:

1/5

Step-by-step explanation:

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4x - 3y = -28<br>x + 5y = 39 cant seem to be able to figure the answer for this

Rus_ich [418]

value of x = -1 and value of y=8

Step-by-step explanation:

We need to solve the system of equations:

$4x - 3y = -28\,\,\,(1)\\x + 5y = 39\,\,\,(2)$

Multiply eq(2) with 4 and subtract with eq(1)

$4x-3y=-28\\4x+20y=156\\-\,\,\,-\,\,\,\,\,\,\,\,\,\,\,\,\,\,-\\--------\\-23y=-184\\y=\frac{-184}{-23}\\y=8$

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Now, finding value of x by putting value of y in equation 2

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So, value of x = -1

value of x = -1 and value of y=8

Keywords: System of Equations

Learn more about System of Equations at:

#learnwithBrainly

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