11/4/2022 Equations

4x + 7 = 23

• x = 16
• x = 4
• x = 9
• x = 12

3c + 5 = 23

• c = 3
• c = 6
• c = 7
• c = 18

Solve  9 + 3x = 10

• 2/3
• 1/3
• -1/3
• 4

2x - 4 = 10

• x = 7
• x = 3
• x = 5
• x = 1

8r - 14 = 42

• r = 7
• r = 4
• r = 8
• r = 5

^x/₃+ 10 = 15

• 75
• 15
• 25
• 5

7 + ^a⁄₃ = 5

• a= -2
• a= -6
• a= 3
• a= 15

What is the correct step to solve for the variable?
15 = m - 5

• add 15 to both sides
• add 5 to both sides
• subtract 15 from both sides
• subtract 5 from both sides

What is the inverse operation of division?

• Division
• Multiplication
• Addition
• Subtraction

When solving a two-step equation which operations do you undo first?

• addition and subtraction

• addition and multiplication

• multiplication and division

• subtraction and division