# Elementary Algebra Review Part 7

Taught by YourMathGal
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Part of video series
Lesson Description:

Simplify numerical expressions using order of operations, evaluating variable expressions by plugging in given values

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

• How do you simplify numerical expressions using order of operations?
• How do you simplify (-3 - 4^2)/(-2^5) using order of operations?
• How do you simplify (5 - 4*-3)/(5^2) using order of operations?
• How do you simplify (7 - 4(1 - 3))/(6^2) using order of operations?
• How do you evaluate variable expressions with given values of variables?
• How do you evaluate 5x^3 when x = 2
• How do you evaluate 7yz - 8x when x = 2, y = -3, and z = -4?
• How do you evaluate (4xy - z)/(3x + 1) when x = 2, y = -3, and z = -4?
• How do you evaluate (x + 2y)^3 when x = 2 and y = -3?
• How do you evaluate (3y + x)/(z + 5) when x = 2, y = -3, and z = -4?
• How do you evaluate y^2/(x - yz) when x = 2, y = -3, and z = -4?
• #### Staff Review

• Currently 4.0/5 Stars.
This lesson includes more simplifying of numerical expressions and evaluating variable expressions by using values for each variable. Again, all steps are shown and explained.