Question

Please help and explain

Answer 1

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)

Answer 2

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.