Substitute 9 for x and evaluate the expression below.
8× - 3×
-5
45
-45
5
To evaluate the expression 8x - 3x when substituting 9 for x, we substitute 9 for x in the expression:
8(9) - 3(9)
72 - 27
= 45
Therefore, the answer is 45.
8× - 3×
-5
45
-45
5
8(9) - 3(9)
72 - 27
= 45
Therefore, the answer is 45.