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3 years ago

Solve y over negative 4 + 5 = 15. 80 −80 40 −40

Mathematics

1 answer:

Virty [35]3 years ago

8 0

The answer is - 40. Observe.

y/-4 + 5 = 15
y = -40
-40/-4 = 10
10 + 5 = 15

Thus, y= -40

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sladkih [1.3K]

Answer:

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3 years ago

Read 2 more answers

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Answer:

Step-by-step explanation:

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4 years ago

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3 years ago

X = y^2 - 1

ohaa [14]

Answer: The correct option is (B) $2y^2-y-6=0.$

Step-by-step explanation: We are given the following system of equations :

$x=y^2-1~~~~~~~~~~~~~~~~~~~~~~~~~~(i)\\\\2x-y=4~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)$

We are to find the equation that could be the result of using substitution to solve the above system.

Substituting the value of x from equation (i) in equation (ii), we get

$2x-y=4\\\\\Rightarrow 2(y^2-1)-y=4\\\\\Rightarrow 2y^2-2-y=4\\\\\Rightarrow 2y^2-y-2-4=0\\\\\Rightarrow 2y^2-y-6=0.$

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3 years ago

Name one expression that is equivalent to 5x-6y+7

IceJOKER [234]

Y=5/6x+7/6

i dont know if thats the answer your looking for but here

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3 years ago