shreyadas shreyadas

19-07-2020
Mathematics

contestada

10x - 8y = 40
5x - 2y = 40
What is the value of y in the (x, y) solution to the
system of equations shown above?

Respuesta :

DatGuy323 DatGuy323

19-07-2020

Answer: 10

Step-by-step explanation:

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Answer Link

bekkarmahdi702 bekkarmahdi702

19-07-2020

Step-by-step explanation:

10x-8y = 40 (1)

5x-2y= 40 (2)

multiply (2) by -2 then add to (1) to get rid of x

-10x+4y+10x-8y = 40+ (-80)

-4y = -40

4y = 40

y= 40/4

y = 10

the answer is 10

Answer Link

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