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Rashid [163]
3 years ago
8

Solve the system by substitution. -8x – 7y = -5 -x = y

Mathematics
2 answers:
Lapatulllka [165]3 years ago
6 0

Substitute y = -x into the first equation:

-8x - 7(-x) = -5

-8x + 7x = -5

-x = -5

x = 5

Substitute x = 5 into y = -x

y = -(5)

y = -5

Answer: x = 5, y = -5

Inessa [10]3 years ago
5 0

Step-by-step explanation:

-8x -7y + 5 = 0

y = -x

substituting this value, we get:

-8x -7(-x) +5= 0

-8x +7x + 5 =0

-x +5=0

5 = x

substituting this value in the equation, we get:

-8(5) -7y + 5 = 0

-40 -7y +5=0

-35 -7y =0

7y = -35

y = -35/7

y = -5

Follow me please ...thank u :)

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pishuonlain [190]

The value of x is  21√2/2

The correct option is (A)

<h3>What is Trigonometry?</h3>

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In triangle having angle 60.

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1 year ago
In a normal distribution, which is greater, the mean or the median? Explain.
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3 years ago
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8 0
3 years ago
Brianna bought snacks for her team's practice. She bought a bag of oranges for $2.72 and a 20-pack of juice bottles. The total c
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each bottle was $2.12 :P

Step-by-step explanation:

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