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vova2212 [387]
3 years ago
15

How many orders pair solutions does the system of equations have? -4+3y=12 x+y=2

Mathematics
1 answer:
Wewaii [24]3 years ago
3 0

Answer:

B. 1

- 4x + 3y = 12 -  -  - (a) \\ x + y = 2 -  -  - (b) \\  (a) - 3 \times (b) :  \\  - 7x + 0y = 6 \\  { \boxed{x =   - \frac{6}{7} }} \\  -  \frac{6}{7}  + y = 2 \\ { \boxed{y =  \frac{20}{7} }}

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What’s the equation for this
LekaFEV [45]
<h2>Answer:</h2>

Hope it work for u

<h2>Step-by-step explanation:</h2>

We can make points from the given figure as ,

1 point =(x1, y1)=(-2, -3)

2nd point =(x2, y2)=  (0, -6)

3rd point = (x3, y3)=(2 , -9)

Now the equation of line is,

<h2>Y=m X+ c  where   m is slope and c is constant </h2>

now two point formula of slope is ,

<h2>m = y2-y1/x2-x1</h2>

putting points in it we get

m=(-6-(-3))/(0-(-2)

m=-3/2 is slope

Now to find C putt the value of m and 3rd point in equation of line we get

y3=m(x3)+c

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C= -9+3

C=-6  is value of c

Now at last putt the value of C and m in equation of line we get the required equation ,

<h2><u>Y=(-3/2)X-6  </u> Ans</h2>
8 0
3 years ago
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Step-by-step explanation:

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3 years ago
100 Points and Brainliest.
hichkok12 [17]

Answer:

See below ↓

Step-by-step explanation:

We have a graph given to us.

⇒ Take the points to form an equation!

<u>The points</u>

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  • (-2, 1)

<u>Making an equation</u>

  • Find the slope
  • m = 1 - 6 / -2 - 4
  • m = -5 / -6
  • m = 5/6

  • Take one of the two points and substitute in the equation :
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  • ⇒ y - 6 = 5/6 (x - 4)
  • ⇒ y - 6 = 5x/6 - 10/3
  • ⇒ <u>y = 5x/6 + 8/3</u>
  • ⇒ or <u>6y = 5x + 16</u>
3 0
2 years ago
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