Which steps are needed to solve this equation?
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b minus 21 = 177
Subtract 21 from the left side and add 21 to the right side of the equation.
The answer is b = 198.
Check the solution by substituting 198 for b.
Add 21 to the left side and subtract 21 from the right side of the equation.
The answer is b = 156.
Check the solution by substituting 198 for b.
Subtract 21 from both sides of the equation.
The answer is b = 156.
Check the solution by substituting 156 for b.
Add 21 to both sides of the equation.
The answer is b = 198.
Check the solution by substituting 198 for b.