Question

2x+7y= -5
5x - 7y = 14

Answer 1

Let's solve for x:

`2x+7y=−5`

Step 1: Add -7y to both sides.

`2x+7y+−7y=−5+−7y \\ 2x=−7y−5`

Step 2: Divide both sides by 2.

`(2x)/(2) = (7y−5)/(2)\\ x= ( - 7)/(2) y+ ( - 5)/(2)`

Therefore, the answer for the first one will be x = -7/2 y + -5/2.

Let's solve for x.

`5x−7y=14`

Step 1: Add 7y to both sides.

`5x−7y+7y=14+7y \\5x=7y+14`

Step 2: Divide both sides by 5.

`(5x)/(5) = (7y + 14)/(5) \\ x= (7)/(5) y+ (14)/(5)`

Therefore, the answer for the second one will be x = 7/5 y + 14/5

Answer 2

19

Explanation: