Solving Two-Step Equations All Operations

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

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

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

Tags

CCSS.7.EE.B.4A

When solving 234 + N =389, what operation would you use to find the answer

• multiplication

• addition

• subtraction

• division

Tags

CCSS.4.NBT.B.4

How would you isolate the variable in the following equation?

• Add 4 to both sides, the answer is 16

• Divide both sides by 4, the answer is 3

• Subtract 4 from both sides, the answer is 8

• Multiply both sides by 4, the answer is 48

Tags

CCSS.6.EE.B.7

How would you isolate the variable for the following equation:

x - 7 = 2

• Divide both sides by 7, the answer is 125

• Add 7 to both sides, the answer is 9

• Add 2 to both sides, the answer is 9

• Multiply both sides by 7, the answer is 14

Tags

CCSS.6.EE.B.7

How would you isolate the variable in the following equation?

7x = 42

• Multiply both sides by 7, the answer is 294

• Divide both sides by 7, the answer is 6

• Subtract 7 from both sides, the answer is 35

• Add 7 to both sides, the answer is 49

Tags

CCSS.6.EE.B.7

How would you isolate the variable for the following equation?

• Subtract 9 from both sides. The answer is

  36

• Divide both sides by 9, the answer is

  5

• Divide both sides by 45, the answer is 5

• Multiply both sides by 9, the answer is 5.

Tags

CCSS.6.EE.B.7

Translate 4 more than x equals 7 into an equation and solve. 

• x+4=7
  x = 11

• x+4=7
  x = 3

• x-4=7
  x = 11

• x-4=7
  x=3

Tags

CCSS.6.EE.B.7

An inverse operation is

• reversing the sign in an inequality

• using the opposite operation to solve equations

•  A number’s distance from zero

Tags

CCSS.6.EE.B.7

Choose the first step in solving the following equation.
-3y - 12 = 14

• add 3 from both sides

• add 12 to both sides

• subtract 12 from both sides

Tags

CCSS.7.EE.B.4A