Writing One Variable Equations/Inequalities

Pick the correct inequality.

• A

• B

• C

• D

Solve:  6z + 3 -4z = 9

• z = 3

• z = 60

• z = 30

• z = 1

Translate: 
Four times a number plus six IS 30.

• 4 + 6 = 30

• 4x + 6 = 30

• x + 4 times 6 = 30

• 30 = 4x

Pick the correct inequality.

• A

• B

• C

• D

The Frederick County Fair costs $15.00 to get in and $2.50 per ride, while the Montgomery County Fair costs $10.00 to get in and $3.00 per ride.

Which inequality could be used to determine how many rides you would need to go on before it would become cheaper to go to the Frederick fair?

• 15x + 2.5 < 10x + 3

• 15 + 2.5x > 10 + 3x

• 15 + 2.5x < 10 + 3x

• 15 - 10 ≥ 2.5x + 3x

The objective when solving an equation is to....

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

Which equation has x=9 as a solution

• 4 + x = 12

• 5x = 45

• 2x = 20

• x + 7 = 26

Which figure shows the inequality x > -4?

• Figure 1

• Figure 2

• Figure 3

• Figure 4

Solve the Equation:
2(6b + 1) = 4(b - 5) -2

• b = - 2.75

• b = -7/8

• b = 3

• b = -3

Solve for y:
x + 2y = −8  

• y = − 1 /2 x − 4

• y = − 2 x − 4

• y = 1 /2 x − 4

• y = − 1 /2 x +4