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I'm not home and my phone is about to die please help

I'm not home and my phone is about to die please help-example-1

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ANSWER

x = 9, y = 5

Step-by-step explanation

We have a system of two simultaneous equations:

-4x + 9y = 9 ______(1)

x - 3y = -6 ______(2)

From (2), we have that:

x = 3y - 6

Put that in (1):

-4(3y - 6) + 9y = 9

-12y + 24 + 9y = 9

Collect like terms:

-12y + 9y = 9 -24

-3y = -15

y = -15 / -3

y = 5

Recall that x = 3y - 6:

=> x = 3(5) - 6

x = 15 - 6

x = 9

So, x = 9, y = 5

User Cameron Downer
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