3 years ago

Solve the systems of equations by Elimination. Find the solution. -x+y=9 x+2y=6

Mathematics

1 answer:

Zina [86]3 years ago

4 0

Answer:

(-4,5)

Step-by-step explanation:

-X and X cancel each other out so your're left with

Y=9

2Y=6

Add the like terms together to get 3Y=15

so Y=5.

Then plug in y into one of the equations to get x.

-x+5=9

-x=4

X=-4

So the solution is (-4,5)

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Vinvika [58]

Answer:

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2 years ago

Find the mid-point of the line segment joining the points (10, 13) and (-7, 7)?

PIT_PIT [208]

Answer:

(3/2,10)

Step-by-step explanation:

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3 years ago

Find the solution of the system of equations.<br><br>6x+y=30<br><br>−2x−5y=18

IRISSAK [1]

Answer:

Step-by-step explanation:

6x + y = 30

-6x - 15y = 54

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y = -6

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4 years ago

In parallelogram ABCD , BE=7x−2 and ED=x2−10 .

Stells [14]

I'm assuming that the diagonals intersect at E. Since diagonals of a parallelogram bisect each other, BE=ED.

7x-2=x²-10
x²-7x-8=0
(x-8)(x+1)=0
x = -1, 8

As distance must be positive, we reject the negative case, so x=8.

Thus, BE=ED=54.

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2 years ago

X^2+2x+5=0 solve for X

Oksana_A [137]

Is it no real solutions?

7 0

3 years ago