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3 years ago

4x + y =3 x + y - z = 9 2x + 2y + z = 0

Mathematics

1 answer:

uranmaximum [27]3 years ago

4 0

Answer:

$[0, 3, -6]$

Step-by-step explanation:

{4x + y = 3

{x + y - z = 9 ←

{2x + 2y + z = 0 ←

{4x + y = 3

{3x + 3y = 9 >> Combined equation

−¾[4x + y = 3]

{−3x - ¾y = −2¼ >> New Equation

{3x + 3y = 9

_________

2¼y = 6¾

___ ___

2¼ 2¼

$y = 3$ [Plug this back into all three equations to get the z-value of −6, and the x-value of 0]; $0 = x$ ; $-6 = z$

I am joyous to assist you anytime.

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Keywords: System of equations

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#learnwithBrainly

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