Yhixdidn
Answered

Discover new perspectives and gain insights with IDNLearn.com's diverse answers. Get prompt and accurate answers to your questions from our experts who are always ready to help.

Solve the system using elimination.

2x – 2y = –8
x + 2y = –1

(–3, 1)

(–14, 1)

(0, 4)

(1, 5)

Sagot :

Answer:

(- 3, 1 )

Step-by-step explanation:

2x - 2y = - 8 → (1)

x + 2y = - 1 → (2)

adding the 2 equations term by term will eliminate y

3x + 0 = - 9

3x = - 9 ( divide both sides by 3 )

x = - 3

substitute x = - 3 into either of the 2 equations and solve for y

substituting into (2)

- 3 + 2y = - 1 ( add 3 to both sides )

2y = 2 ( divide both sides by 2 )

y = 1

solution is (- 3, 1 )

Chibabykalu16idn

Answer:

(–3, 1)

Step-by-step explanation:

Step 1: Solve for x

2x – 2y = –8 -----------(1)

x + 2y = –1. -------------(2)

  • Add equation 1 to 2

⇒2x + x| -2y + 2y |= -8 -1

⇒3x = -9

  • Divide both side by the coefficient of x

⇒3x/3 = -9/3

⇒x = -3

Step 2; Solve for y

  • Substitute into equation 2

x + 2y = –1

(-3) + 2y = -1

  • Add 3 from both sides

-3 + 2y + 3 = -1 + 3

2y = 2

  • divide both side by two

2y/2 = 2/2

y = 1

So, ( x,y) ⇒(-3,1)

Your participation is crucial to us. Keep sharing your knowledge and experiences. Let's create a learning environment that is both enjoyable and beneficial. Thank you for visiting IDNLearn.com. We’re here to provide accurate and reliable answers, so visit us again soon.