Two-step Equations

3c + 5 = 23

• c = 3

• c = 6

• c = 7

• c = 18

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

Solve for a

• a= -2

• a= -6

• a= 3

• a= 15

1 - 9x = -80

• 9

• -9

• 8

• -8

9x - 7 = - 7

• 0

• undefined

• 2

What is the next step in the equation?

3x = 15

• Divide both sides by 3

• Add 3 and 15

• Subtract 3 and 15

• Multiply 3 and 15

To undo an operation, you must do its opposite or inverse to both sides of the equation. Match each operation to its inverse.

• Subtraction

• Division

• Multiplication

• Addition

• Division

• Subtraction

• Addition

• Multiplication

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

3n + 4 = 7 

• 1

• -1

• 3.67

• 2