1. X - 9 = 20

2. 2x - 5 = 25

3. Y + 8 = 12

4. 6y + 6 =18

5. 4X = 16

6. X + 14 = - 7

7. Y/-7 = -9

8. 11x = 132

9. X - 9 = -15

10. 4y - 7 = 21

11. 12y = 72

12. X/2 - 9 = 5

13. Y - (-9) = 14

1. x=29

2. x=15

3. y=4

4. y=2

5. x=4

6. x=-21

7. y=63

8. x=12

9. x=-6

10. y=7

11. y=6

12. x=28

13. y=5

Hope it helps

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

a

step-by-step explanation: