Solving Equations and Inequalities

62x= 123

How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side.

• Subtract 62 from each side.

• Multiply each side by 62.

• Divide each side by 62

Solve the equation:
-5x = 25

• x = 20
• x = -20
• x = -5
• x = 5

19  + a  =  -50

• a = -950
• a =  -69
• a = -31
• a = -50/19

Solve for x

• x = 20
• x = 7
• x = 10
• x = 3

greater than

• <
• >
• ≤
• ≥

less than

• <
• >
• ≤
• ≥

less than or equal to

• <
• >
• ≤
• ≥

great than or equal to

• <
• >
• ≤
• ≥

When graphing an inequality, which symbol represents a closed circle?

• <, >
• ≤, ≥ 

When graphing an inequality, which symbol represents an open circle?

• ≤, ≥ 
• <, >