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

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175

the answer is 489

step-by-step explanation: