5c-3d+115c−3d+115, c, minus, 3, d, plus, 11 when c=7c=7c, equals, 7 and d=8d=8d, equals, 8.

what's with all the repetition, words, etc.?

5c-3d+11 = 5(7)-3(8)+11 = 35-24+11 = ____

To find the value of the expression 5c - 3d + 11, given that c = 7 and d = 8, we substitute the values of c and d into the expression and evaluate it.

Step 1: Substitute the values of c and d into the expression:
5(7) - 3(8) + 11

Step 2: Simplify the multiplication:
35 - 24 + 11

Step 3: Perform the addition and subtraction:
35 - 24 + 11 = 22

Therefore, when c equals 7 and d equals 8, the expression 5c - 3d + 11 evaluates to 22.

he copied/pasted from khan academy

Evaluate 5c-3d+115c−3d+115, c, minus, 3, d, plus, 11 when c=7c=7c, equals, 7 and d=8d=8d, equals, 8.