Algebraic Equations Addition and Subtraction

x + -20 = 50

• x = 30

• x = -70

• x = 70

• x = -30

Tags

CCSS.6.EE.B.7

x + (-103) = - 80

• x = 23

• x = 27

• x = 17

• x = 24

Tags

CCSS.6.EE.B.7

The sum of a number and 8 is -13.  Find the number.

• 15

• 21

• -5

• -21

Tags

CCSS.6.EE.B.7

The combined ages of the 7th grade class is 1,582.  The combined ages of the 8th grade class is 34 more than the 7th grade.  Which equation can help you find the combined ages of the 8th grade class?

• 1,582 + 34 = h

• h = 1,582 - 34

• 1,582 - h = 34

• 34 = h + 1,582

Tags

CCSS.HSA.CED.A.3

When solving algebraic equations, to undo addition we use ______________ .

• division

• subtraction

• addition

• multiplication

Tags

CCSS.6.EE.B.7

When solving algebraic equations, to undo subtraction we use ______________ .

• subtraction

• division

• addition

• multiplication

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

The inverse operation of subtraction is addition.

• True

• False

The inverse operation for the equation shown is: h + 18 = 34

• subtract 34

• subtract 18

• add 34

• add 18

Tags

CCSS.6.EE.B.5

What are the TWO basic rules for solving algebraic equations?

• Whatever you do to one side of the equation, you must do on the other side of the equation.

• Always add on both sides.

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

• Always do the inverse operation.

Tags

CCSS.6.EE.B.7