HELP 30 POINTS!!!!!!!!!!!!!!!!!!!!! Please explain this!!!

Mathematics

2 answers:

finlep [7]4 years ago

7 0

First, multiply the first equation by 3 to get:

$3x+3y=-6$

Then, add the two equations together to get

$8x=16$

We can follow that x=2. Plugging in x=2, we get that y=-4.

Therefore, the solution of (2,-4)

Lynna [10]4 years ago

5 0

Answer:

[2, -4]

Step-by-step explanation:

{y + x = -2

{5x - 3y = 22

-⅕[5x - 3y = 22]

{y + x = -2

{-x + ⅗y = -4⅖

_______________

1⅗y = -6⅖

____ ____

1⅗ 1⅗

y = -4 [Plug this back into both equations above to get the x-coordinate of 2]; 2 = x

I am joyous to assist you anytime.

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<img src="https://tex.z-dn.net/?f=%5Cfrac%7B%5Csec%5Cleft%28x%5Cright%29%7D%7B%5Ccos%5Cleft%28x%5Cright%29%7D-%5Cfrac%7B%5Csin%5

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