Evaluating Algebraic Expressions
We are given the expression
Q = 5m - 7n
And we're required to evaluate it for m=-5.7 and n=7.8.
Substituting:
Q = 5(-5.7) - 7(7.8)
Operating the products separately:
Q = -28.5 - 54.6
Operating:
Q = -83.1
The expression results -83.1
