Evaluate 7 - 5p + 3q when p = 1 and q = 7
To evaluate 7 - 5p + 3q when p = 1 and q = 7, substitute the given values into the expression:
7 - 5(1) + 3(7)
Simplify:
7 - 5 + 21
= 2 + 21
= 23
Therefore, when p = 1 and q = 7,
7 - 5p + 3q = 23.