181k views
2 votes
Please help and explain

Please help and explain-example-1
User Cmilam
by
8.3k points

2 Answers

6 votes

Answer:

Part A = 4x - 2y = 4

Part B = (1.5, 1)

Explanation:

Part A:

y = 2x - 2

2y = 4x -4

4x - 4 = 2y

4x - 2y = 4

Part B:

4x + 2y = 8

2y = 8 - 4x

y = (8 - 4x)/2

y = 2x -2

(8 - 4x)/2 = 2x -2

8 - 4x = 4x - 4

8x = 12

x = 1.5

4x + 2y = 8

4(1.5) + 2y = 8

6 + 2y = 8

2y = 2

y = 1

(1.5, 1)

User Dan Sorensen
by
7.8k points
6 votes

Answer:

The first box is 4 and the second box is 4

The solution is
(
(3)/(2),1)

Explanation:

y = 2x -2 Subtract 2x from both sides

-2x + y = -2 Multiply all the way through by - 2

4x - 2y = 4 You are doing this so that you can add it to the first equation 4x + 2y = 8

4x + 2y = 8

(+) 4x - 2y = 4

8x = 12 Divide both sides by 8

x =
(12)/(8) =
(3)/(2)

To find y substitute
(3)/(2) for x and solve for y

y = 2x - 2

y =
(2)/(1) x
(3)/(2) - 2

y = 3 - 2

y = 1

Helping in the name of Jesus.

User Soger
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories