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3 years ago

6x-3y=12 5x-5y=10 using substitution and elimination

Mathematics

1 answer:

Vladimir79 [104]3 years ago

4 0

Answer:

X = 0, Y = -2

Step-by-step explanation:

5(2x + 6y = -12)

2(5x - 5y = 10)

10x + 30y = -60

10x - 10y = 20

40y = -80

y = -2

x = (10 + (-2)5) / 5

x = 0

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3 years ago

Can someone help me figure this out

Setler79 [48]

Answer:

<h2>See the explanation.</h2>

Step-by-step explanation:

It is told that, 330 students that are surveyed, are 9th graders.

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