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2 years ago

Can you answer this math homework? Please!

Mathematics

2 answers:

Kay [80]2 years ago

8 0

Step-by-step explanation:

$x + 3y = 7 \\ 2x + 4y = 8 \\ x = 7 - 3y \\ 2(7 - 3y) + 4y = 8 \\ 14 - 6y + 4y = 8 \\ 14 - 2y = 8 \\ - 2y = - 6 \\ y = 3 \\ x = 7 - 3(3) \\ x = 7 - 9 \\ x = - 2$

Alinara [238K]2 years ago

5 0

Answer:

2x+3y=7x4

x+4y=8x3

8x+12y=27

3x+12y=24

8x-3x =5x

+12y-+12y=0

27-24=3

5x/5 3/5x

answer = <em>x = 3/5</em>

y=1.85

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Answer:

Given the domain, the range for 3x-y = 3 is {-9, 6, 9}

Step-by-step explanation:

First you have to put the relation in terms of y ⇒ 3x - y = 3⇒ 3x -3 = y

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Then you replace the values indicated by the domain to find their "y" values (the ones that constitute the range).

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3 years ago

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