Question

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.

Answer 1

Answer:b=15

Step-by-step explanation:

Let's solve your equation step-by-step.

b+6=21

Step 1: Subtract 6 from both sides.

b+6−6 = 21−6

b=15