Evaluate the expression for the given values of the variables.

Evaluate 9p - 8q for p = 4 and q = - 8.

The expression is equal to.

The expression 9p - 8q for p = 4 and q = - 8 is equal to 100

Solution:

Given that we have to evaluate expression for the given values of the variables

Expression is:

⇒ 9p - 8q

Given that p = 4 and q = - 8

Let us substitute the given values of p = 4 and q = - 8 in given expression and evaluate it

⇒ 9p - 8q = 9 (4) - 8 (-8)

⇒ 9p - 8q = 9 (4) + 8 (8)

Upon multiplying the terms we get,

⇒ 9p - 8q = 36 + 64 = 100

Thus the expression is equal to 100