High School

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Which steps are needed to solve this equation?

\[ b - 21 = 177 \]

1. Add 21 to both sides of the equation.
2. The answer is \( b = 198 \).
3. Check the solution by substituting 198 for \( b \).

\[ 198 - 21 = 177 \]

Therefore, \( b = 198 \) is the correct solution.

Answer :

Answer:

D. Add 21 to both sides of the equation.

The answer is b = 198.

Check the solution by substituting 198 for b.

Step-by-step explanation:

D. 21-21= 177+21=198

0

198-21=177

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Rewritten by : Barada

The steps are needed to solve b - 21 = 177 equation are:

Add 21 to both sides of the equation.

The answer is b = 198.

Check the solution by substituting 198 for b.

What is an equation?

"It is a statement which consists of equal symbol between two mathematical expressions."

What is the solution of the equation?

"It is the set of all values that that make an equation true."

For given question,

We need to solve the equation b - 21 = 177

⇒ b - 21 = 177 ................(original equation)

⇒ b - 21 + 21 = 177 + 21 .................(Add 21 to each side)

⇒ b = 198

Therefore, the steps are needed to solve b - 21 = 177 equation are:

Add 21 to both sides of the equation.

The answer is b = 198.

Check the solution by substituting 198 for b.

Learn more about solution of equation here:

https://brainly.com/question/545403

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