Expressions, Equations, and Inequalities Review No Negatives

Absolute Value always turns any number into a...

• negative

• positive

• the opposite

• decimal

What is the difference between equations and expressions?

• Equations have an equal sign or "is #" and expressions DO NOT.

• Expressions have an equal sign or "is #" and equations DO NOT.

Which of the following expressions represents the following statement:

3 less than a number x

• x = -3

• 3 - x

• x - 3

• x > 3

Which of the following is equivalent to 5(x+13) ?

• 18x

• 5x + 65

• 70x

"Twenty-four minus three times an integer, x, is less than x minus four."

Write an inequality, in terms of x, to represent this information.

Mathematical Equivalence

OFF

Mathematical Equivalence

ON

Match the following

• Has an equal sign

• Expression

• no equal sign or inequality symbol

• inequality

• more than one line

• Equation

• has an inequaltiy symbol

• System of Inequalties

• Double shaded region

• System of Equations

Abi saves $8 each week.  Which equations represents the amount of money, m, she will save in w weeks?

• m = 8w

• m = w + 8

• m = 8 - w

Solve the following equation: w - 12 = 26

• w = 38

• w = 12

• w = 26

What inequality is represented on the number line?