Lesson 4-1 Check Up: Solve Equations Using Addition and Subtract

Evaluate: -35 + y= 70

• 35

• -35

• 105

• -105

Tags

CCSS.6.EE.B.7

Solve the equation:
-2.6 + x = -4.6

• x = 2
• x = -2
• x = 7.2
• x = -7.2

Tags

CCSS.6.EE.B.7

• j = -7/10

• j = -34

• j = 280

• j = 6

Tags

CCSS.6.EE.B.7

• y = -35

• y = 2

• y = -12

• y = 5/7

Tags

CCSS.6.EE.B.7

How do we isolate the variable in an equation?

• Add the coefficient on both sides.

• Subtract the coefficient on both sides.

• Perform the inverse operation of whatever is happening to the variable to one side.

• Perform the inverse operation of whatever is happening to the variable to both sides.

Tags

CCSS.6.EE.B.7

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

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

• Subtract 7 from both sides. The solution is x = 5.
• Add 7 to both sides.
  The solution is x = 19.
• Multiply both sides by 7 The solution is x = 84.

Tags

CCSS.6.EE.B.7

Solve for x:

x + 19.46 = 245.3

• 264.76

• 12.6

• 50.7

• 225.84

Tags

CCSS.6.EE.B.7

When you solve one-step equations, whatever you do to one side of the equation,

• you can cross out

• you must do the SAME thing to the other side

• you can simplify

Tags

CCSS.6.EE.B.7

To solve one-step equations, you have to use the ________________ operation.

• Integer
• Inverse
• Additive
• Subtractive

Tags

CCSS.6.EE.B.7