Home > CC2 > Chapter 6 > Lesson 6.2.5 > Problem6-112

6-112.

Evaluate the following expressions.

1. $7x+8$ when $x=9$

When you replace $x$ with $9$ your equation is:
$7(9)+8$

Use the Order of Operations to simplify.

$71$

1. $6(y-11)$ when $y=-6$

Replace y with $-6$ and then use the Order of Operations to simplify the expression.

1. $45-5m+7$ when $m=-4$

Use the method presented in part (a).

$72$

1. $-2t+9$ when $t=-20$

See part (a).