Question

Evaluate 7-5p+3q when p=1 and q=7

Answer 1

Rewrite the equation with the values instead of letters.

7-(5 x 1) + (3 x 7)

7-5+21

7-5 = 2

2 + 21 = 23

23 is your answer.

Explanation:

Answer 2

23

Explanation:

Since it gives you the values of p and q, just plug it into the expression:

7 - 5p + 3q

7 - 5(1) + 3(7)

7 - 5 + 21

2 + 21

23