Solving One Step Equations and Combining Like Terms

Jacob solved the following equation using the steps shown.

Step 1 5x + 9 = 2x - 3

Step 2 3x + 9 = -3

Step 3 3x = -12

Step 4 x = -4

What operation did he perform to get from Step 1 to Step 2?

• Subtracted 2x from both sides of the equation

• Subtracted 9 from both sides of the equation

• Multiplied both sides of the equation by 3

• Added -3 to both sides of the equation

What is the error?

• Adding 2x to 3x

• Subtracting 5 from both sides

• Adding 2x to -2x

• Dividing by 5 on both sides

Tags

CCSS.HSA.REI.A.1

6x - 5 + 7x = 34

x = ?

(Just type the number)

Tags

CCSS.8.EE.C.7B

-15 + 3x - 7x = -43

x = ?

(Just type the number)

Tags

CCSS.8.EE.C.7B

What is the first step to solve the equation?

• Distribute

• Combine Like Terms

• Collect Variables to One Side

• Use Subtraction Property of Equality

Tags

CCSS.7.EE.B.4A

What is the first step to solve this equation?
3x - 5 = 7

• Add 5 to both sides of the equation

• Add 3x to both sides of the equation

• Subtract 5 from both sides of the equation

• Subtract 7 from both sides of the equation

Tags

CCSS.7.EE.B.4A

4 = 2(x + 3)

x = ?

(Just type the number)

Tags

CCSS.8.EE.C.7B

What is the first step in solving for the variable?

• Distributive property

• Combine Like Terms

• Move the variables to the same side

• Solve for the variable

Tags

CCSS.8.EE.C.7B

Solve: 13 = -11 - 4x

x = ?

(Just type the number)

Tags

CCSS.7.EE.B.4A

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

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

Tags

CCSS.7.EE.B.4A