Question

please help me if you can, please and thank you! :)

Answer 1

Answer:

The answer is s=7

Step-by-step explanation:

I am very good at math and I double-checked my answers.

Answer 2

Answer:

To simplify the problem, 21/7 = 3 so 4s - 7 has to equal 21.

4s has to equal 28 because 28 - 7 equals 21 so 4s = 28

28 / 4 = 7

S = 7