3 years ago

Solve this system of equations: 2x - y = 7 5x + y = 21

1 answer:

7 0

7x= 28 so x is 4 and y is 1.. So (4,1)

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sladkih [1.3K]

Answer:

-1

—— = -0.25000

Step-by-step explanation:

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3 years ago

DerKrebs [107]

The answer is true..

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3 years ago

Westkost [7]

SOS:

Answer:

Take the square root of 36 and subtract 2.

Step-by-step explanation:

$x^2+4x=32\\(\frac{1}{2}*4=2; 2^2=4) : x^2+4x+4=36\\\sqrt{(x+2)^2}=\sqrt{36}\\ x+2=±6: -2+6=4, -2-6=-8$

<em>Hope this helps!!</em>

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vekshin1

Answer:

Step-by-step explanation:

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3 years ago

stira [4]

The answer is (25x-1) (x-5)/5

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2 years ago