Adding and Subtracting Linear Expressions Course 2 Notes

Adding and Subtracting Linear Expressions
A linear expression is:
Linear Expressions
Adding Linear Expressions
Example 1
Simplify (
)
(
).
Example 2
Simplify (
)
(
).
Example 3
Simplify (
)
(
).
Nonlinear expressions
Example 4
(
Simplify
)
Example 5
Find the perimeter of the following rectangle.
Find the perimeter if
.
Subtracting Linear Expressions
Example 6
Simplify (
)
(
)
Example 7
Simplify (
)
(
)
Example 8
(
Simplify
)
(
)
Example 9
Simplify
(
)
(
)
Example 10
5. Find the perimeter of the following triangle.
Find the perimeter if
.