Algebraic Equations Addition and Subtraction

Solve for x.

x + 4 = 20

• 15

• 17

• 24

• 16

Tags

CCSS.6.EE.B.7

The goal when solving an algebraic equation is to isolate the variable.

• True

• False

Tags

CCSS.7.EE.B.4A

y + 8 = 20

• 10

• 11

• 12

• 13

Tags

CCSS.6.EE.B.7

17 = x + 3

• x = 20

• x = 14

• x = 13

• x = 19

Tags

CCSS.6.EE.B.7

x + 12 = 20

• x = 32

• x = -32

• x = 8

• x = -8

Tags

CCSS.6.EE.B.7

4 + b = 30

• -34

• 34

• -26

• 26

Tags

CCSS.6.EE.B.7

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

Tags

CCSS.6.EE.B.7

What is the correct step to solve for the variable?
15 = m - 5

• add 15 to both sides

• add 5 to both sides

• subtract 15 from both sides

• subtract 5 from both sides

Tags

CCSS.6.EE.B.7

What what is the inverse operation of subtraction?

• addition

• subtraction

• multiplication

• division

Tags

CCSS.2.NBT.B.5

What are the two basic rules for solving algebraic equations?

• Whatever you do to one side of the equal sign, you must copy and do on the other side of the equal sign

• Negative signs can be ignored

• Always start on the left side, regardless of where the variable is

• Always do the opposite operation

Tags

CCSS.6.EE.B.7