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Viefleur [7K]
3 years ago
7

Solve: 2x+3y=1 y=-2x+11

Mathematics
1 answer:
Sauron [17]3 years ago
6 0

Answer:

(8, -5); x=8; y=-5

Step-by-step explanation:

i'll be solving via substitution

2x+3y=1; y=-2x+11

2x + 3(-2x +11) = 1

2x -6x +33 = 1

-4x = -32

x = 8

2(8) + 3y = 1

16 + 3y = 1

3y = -15

y = -5

(8, -5)

Check:

-5 = -2(8) + 11

-5 = -16 + 11

-5 = -5

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5) –2x – 9y=-25<br> -4x – 9y=-23
notka56 [123]

Answer:

(-1,3)

Step-by-step explanation:

–2x – 9y=-25

-4x – 9y=-23

Multiply the second equation by -1

4x + 9y=23

Add this to the first equation

–2x – 9y=-25

4x +  9y= 23

-----------------------

2x        = -2

Divide each side by 2

2x/2 = -2/2

x = -1

Now we need to find y

4x+9y = 23

4(-1) +9y = 23

-4 +9y = 23

Add 4 to each sdie

-4+4 +9y = 23+4

9y = 27

Divide each side by 9

9y/9 = 27/9

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5 0
3 years ago
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Korvikt [17]

Answer:

Send q picture of the graphs so I can help

Step-by-step explanation:

need pictures of graph

4 0
3 years ago
Angle CMW and angle WML together form angle CML. Angle CMW is a right angle. What must be true about angle CML?
ANTONII [103]
CML must be an obtuse angle.

Since CMW and WML together form CML, and CMW is a right angle, then CML must be larger than a right angle, which makes it obtuse.
3 0
3 years ago
The slope of the line below is 2/5 and the y-intercept is 4 . What is the slope intercept equation of the line ?
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Y=2/5X+4 is the slope-intercept form. 

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100 POINTS PLEASE HELP EXPLAIN CLEARLY AND YOU GET BRAINIEST!!!!!
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Answer:

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Step-by-step explanation:

The x coordinate is the answer i don't know why u gave so many points.

5 0
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