number 3 is not congruent but number 4 is because #4 is basically the same thing but you cant really multiply something to question #3 to get those answers.
Answer:
hello your answer will be 9/2
32x + 53 = 501
-53 - 53
<u>32x</u> = <u>448</u>
32 32
x = 14
I-1 is the polynomials because I is the linear term and 1 is the constant