cIaire cIaire
  • 23-03-2021
  • Mathematics
contestada



Solve the system of equations - X - Y = 3 and 6x + 2y = -30 by
combining the equations

Respuesta :

christinanyc christinanyc
  • 23-03-2021

Answer:

X= -6, Y= 3

Step-by-step explanation:

1)

- X - Y = 3

- X - 3= Y

Y= - X - 3

2)

6X + 2Y = -30

3X + Y = -15

Y = -15 - 3X

3) Combine

- X- 3 = - 15 - 3X

- X = -15 - 3X +3

-X + 3X = - 12

2X = - 12

X= - 6

4)

- X-Y=3

-(-6) - Y = 3

-Y= 3-6

-Y= - 3

Y = 3

Answer: X= -6, Y= 3

{

6x + 2y = -30, 6(-6)+2(3)= -30

}

Answer Link

Otras preguntas

please help, urgent​
Eight times the difference of a number and 3 is 40
Best describes the beginning of the world war 2
Each week Zoe's parents give her an allowance of $10. Zoe has the opportunity to earn additional money each week by completing tasks that are outside of her reg
5. Are the slidutu pun - Complete: 1 = = = 8 It’s asking me to complete 1/2=
the word it in “we pulled it” refers to the:
Can anyone please help with this? (I need answer ASAP )
Can someone help me asap pls ?????!!!! :/
Which of the following is more likely to reduce traffic accidents? A. Traffic cameras B. More busses C. Traffic congestion D. Louder police sirens
can someone explain this​