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MArishka [77]
4 years ago
12

Solve the following system of equations using the substitution method.

Mathematics
2 answers:
Elina [12.6K]4 years ago
7 0
I think the answer is D !!
Vitek1552 [10]4 years ago
5 0

Answer:

D

Step-by-step explanation:

Since we already know what -y is we can use that to find y.

y = -5x -21.

Let's substitute that in the bottom equation

-4x -5x - 21 = 6.

Simplify.

-9x = 27.

x = -3

Let's solve using

y = -5x -21.

to find y.

y = -5(-3) - 21

y = 15 - 21

y = -6.

There you have it!

x = -3, y = -6

So.. The correct answer choice is D

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3) The distance between two villages is 1.9 km.
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<em>☽------------❀-------------☾</em>

<em>Hi there!</em>

<em>~</em>

<em>1:10000 would be the scale.</em>

<em>❀Hope this helped you!❀</em>

<em>☽------------❀-------------☾</em>

<em></em>

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