One Variable on Both Sides Equations

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

Where is the first mistake?

• Distribution of the 5

• Distribution of the 10

• subtracting 60x from both sides

• dividing by -50

Tags

CCSS.HSA.REI.A.1

Where is the first mistake?

• Subtracting 3 on both sides

• Distributing the 9

• Subtracting 9x on both sides

• Inequality error

What is the first step to solve this equations? 3n - 4 = -2 + 2n

• Add 2n to both sides of the equation

• Add 3n to both sides of the equation

• Subtract 2n from both sides of the equation

• Subtract 4 from both sides of the equation

What is the next step to solve this equation?

n - 4 = -2

• Add 4 to both sides of the equation

• Add n to both sides of the equation

• Subtract n from both sides of the equation

• Subtract 4 from both sides of the equation

Tags

CCSS.6.EE.B.7

What is the first step to solve this equation? 3x + 6 = 10 + 3x + 4x

• Add 4x to both sides of the equation

• Combine like terms 3x and 4x on the same side of the equation

• Add 3x and 6 to get 9x

• Add 6 and 10 to get 16

What is the next step to solve this equation?

3x + 6 = 10 + 7x

• Add 10 to both sides of the equation

• Add 6 to both sides of the equation

• Subtract 3x from both sides of the equation

• Add 7x to both sides of the equation

What is the next step to solve this equation?

-4x + 6 = 10

• Subtract 6 from both sides of the equation

• Add 6 to both sides of the equation

• Add 10 to both sides of the equation

• Subtract 4x from both sides of the equation

Tags

CCSS.7.EE.B.4A

What is the first step in solving the equation 2a - 4(a - 5) = 10

• Add the 2a and a 

• Add 4 to both sides

• Distribute +4 to the a and -5

• Distribute -4 to a and -5

Tags

CCSS.8.EE.C.7B

What is the first step you should take to solve this equation:

 3(x-2) = 2x + 7

• Add 2 to both sides

• Use the distributive property to get rid of the parentheses

• Isolate the variable on one side

• Subtract 7 from both sides