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djverab [1.8K]
3 years ago
14

Look at the system of equations below Sy= -2x +3 1 4x – 3y = 11

Mathematics
1 answer:
kompoz [17]3 years ago
3 0

Answer:

(2,-1)

y= -1

x= 2

Step-by-step explanation:

y= -2x+3

4x-3y=11

substitute the value of y into an equation

4x-3(-2x+3)=11

distribute by multiplying numbers in parenthesis by -3

4x+6x-9=11

add 4x to 6x

10x-9=11

add 9 from both sides

10x=20

divide both sides by 10

x=2

substitute the value of x into an equation

y= -2•2+3

multiply -2 to 2

y= -4+3

add -4 to 3 but 4 is negative, so subtract

y= -1

-----------

(2,-1)

-----------

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3 years ago
Solve -2/3x &gt; 8 or -2/3x &lt; 4.
vekshin1
<h3>Answer: Choice C</h3>

{x | x < -12 or x > -6}

=========================================================

Explanation:

Let's solve the first inequality for x.

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The inequality sign flips when we divide both sides by a negative value.

Let's do the same for the second inequality.

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The conclusion of each section is that x < -12 or x > -6 which points us to <u>choice C</u> as the final answer.

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