Math (Check 2 answers please)

1. What is the value of b in the equation
b + 8 = 13?

A. 5****
B. 8
C. 13
D. 21

2. The steps below show the incomplete solution to find the value of x for the equation
7x − 3x − 4 = −1 + 21:

Step 1: 7x − 3x − 4 = −1 + 21
Step 2: 7x − 3x − 4 = 20
Step 3: 4x − 4 = 20

Which of these is most likely the next step?

A. 4x = 24
B. 4x = 16 *****
C.4x = 5
D.4x = 80

Please check my answers thanks!!

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  1. Both of your answers are right.

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    Ms. Sue
  2. Thank you!!

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  3. You're welcome.

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    Ms. Sue
  4. yes

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