One and Two-Step Equations

What would be the best first step to solving the equation?

• add 6 to both sides
• subtract 6 from both sides
• multiply both sides by 3
• divide both sides by 3

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

What would be the best first step to solving the equation?

• add 18  to both sides
• subtract 18 from both sides
• multiply both sides by 4
• multiply both sides by -4

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

What was done to solve the equation?
(Line 1)          5x - 8 = 32
(Line 2)          5x = 40
(Line 3)          x = 8

• add 8 to both sides, then divide both sides by 5
• add 8 to both sides, then divide both sides by 40
• subtract 8 from both sides, then divide by 5
• subtract 8 from both sides, then multiply by 5

Tags

CCSS.HSA.REI.A.1

What step would be used to solve for the "variable term" first?

• add 16 to both sides
• divide both sides by 3
• multiply both sides by 3
• subtract 5 from both sides

Tags

CCSS.7.EE.B.4A

What step could be used to solve for the "variable term" first?
-7 - y = 13

• add 7 to both sides
• subtract 7 from both sides
• add 13 to both sides
• subtract 13 from both sides

What step could be used to solve for the "variable term" first?

• add 7 to both sides
• subtract 7 from both sides
• divide by -9 on both sides
• multiply by -9 on both sides

Where/what is the mistake?

• Line 2 - You should add 12 to both sides.
• Line 4 - You should multiply both sides by the reciprocal.
• Line 4 - You should multiply both sides by the original fraction. 
• Line 5 - There was a calculation error.

Tags

CCSS.HSA.REI.A.1

Where does a mistake first occur? What should have been done?

• Line 2 - You should subtract 4 from both sides.
• Line 5 - Calculation error
• Line 2 - You should divide by 3 first.
• Line 4 - You should divide by -3 on both sides.

Where does a mistake first occur? What should have been done?

• Line 2 - You should add 4 to both sides first.
• Line 2 - You should multiply by -6 on both sides first.
• Line 5 - Calculation error
• Line 4 - You should divide by -6 on both sides.

Where does a mistake first occur? What should have been done?

• Line 2 - You should add 4 to both sides first.
• Line 3 - You should have multiplied  2 on both sides.
• Line 3 - Calculation error
• There are no mistakes.