Solve the system of equations -2x-y=-5−2x−y=−5 and 3x-4y=-423x−4y=−42 by combining the equations. this is for elimination so if you could also include the steps for it that would be great thanks.

y = 9 and x = -2

explanation:

equations given:

Before doing elimination, we need to make either x or y, similar.

( -2x - y = -5  ) * 4

-8x - 4y = - 20 ____equation 1        [ here i am making y similar ]

3x - 4y = -42 _____ equation 2

solving simultaneously:

 -8x - 4y = - 20

(-) 3x + 4y = +42

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-11x = 22          

x =  

x = -2

Find y:

3x - 4y = -42         [ replace -2 as x ]

3(-2) - 4y = -42

-6 - 4y = -42

-4y = -42 + 6

-4y = -36

y = 9

Find the area of the rectangle. Then, find the area of the circle. The diameter is given, so take half that to get the radius. Multiply the area of the circle by half. Subtract the area of the half circle from the area of the rectangle.

Step-by-step explanation:

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