Which steps are needed to solve this equation? . b + 6 = 21 Subtract 6 from both sides of the equation. The answer is b = 15. Check the solution by substituting 15 for b. Subtract 6 from the left side and add 6 to the right side of the equation. The answer is b = 27. Check the solution by substituting 27 for b. Add 6 to both sides of the equation. The answer is b = 27. Check the solution by substituting 27 for b. Add 6 to the left side and subtract 6 from the right side of the equation. The answer is b = 15. Check the solution by substituting 15 for b.

Subtract 6 from both sides of the equation. The answer is b = 15. Check the solution by substituting 15 for b

Step-by-step explanation:

b+6 =21

Subtract 6 from both sides

b+6-6 = 21-6

b = 15

Check

15+6 = 21

21=21

First one:

Subtract 6 from both sides of the equation. The answer is b = 15. Check the solution by substituting 15 for b.

Step-by-step explanation:

b + 6 = 21

b + 6 - 6 = 21 - 6

b = 15

on a coordinate grid, point a is at (−4.0, −2.4) and point b is at (4.0, −2.4). point b is a reflection of point a across the –axis. input either a lowercase x or i think is the right awnser

step-by-step explanation: