Is C + 11 = 20; c = 9 a solution if the equation

Step-by-step explanation:

c + 11 = 20 ... subtract 11 from both sides

c = 20 - 11

c = 9

and u know that u can check ur answer by subbing it back into the equation

c + 11 = 20

9 + 11 = 20

20 = 20 (correct)

so yes, ur answer c = 9 is correct