Critiquing Two Step Equations

3c + 5 = 23

• c = 3

• c = 7

• c = 6

• c = 18

4x + 7 = 23

• x = 16
• x = 4
• x = 9
• x = 12

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.

Figure out what n equals in this equation:

6n + 4 = -26

• n =-6

• n = -4

• n = 8

• n = -5

2. 2x + 6 = 14

• x = 4

• x = 10

• x = -4

• x = 3

15 = 2a + 7

• 2

• 4

• 12

• 14

4x + 22 = -34

• -14

• -22

• 16

• -20

WRITE AN EQUATION

331 students went on a field trip. Six buses were filled and 7 students traveled in cars. How many students were in each bus?

• 331 = 7x+6

• 331 = 13x

• 331 = 6x +7

• 331 - 7 = 6x

WRITE AN EQUATION

Aliyah had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?

• 24 - 10 = 7x

• 7x - 24 = 10

• 7x + 10 = 24

• 10 + x = 14

WRITE AN EQUATION

You bought a $5 magazine and four

erasers. You spent a total of $25. How

much did each eraser cost?

• 5 + x = 25

• 5 + 4x = 25

• 5x = 25

• 25 - 4 = 5x