Question

Determine whether 4 is a solution of the equation 9x+7=40.
Is 4 a​ solution?

Answer 1

Plug in 4 for x

9(4) + 7 = 40

36 + 7 = 40

43 ≠ 40

No, 4 is not a solution

hope this helps

Answer 2

Question:

Determine whether 4 is a solution of the equation 9x+7=40.

Is 4 a​ solution?

Solution:

9(4) + 7 = 40

= 36 + 7

= 43

Final Answer:

4 is not a solution