Solving One Step Equations Using Subtraction

y + 6 = 20

• y = 22

• y = 13

• y = 14

2 + n =16

• 18

• -18

• 14

r + 18 = -27

• -45

• 45

• -9

17 = x + 3

• x = 20

• x = 14

• x = 13

What what is the inverse operation of subtraction?

• addition

• division

• multiplication

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

19 + a = -50

• a = -95

• a = -69

• a = -31

To solve the equation

x + 5 = 8

I would ....

• subtract 5 from x

• subtract 5 from both sides

• add 5 to both sides

The _________ must be alone or isolated on one side of the equation.

• constant

• coefficient

• variable

8 + n = -4

• 4

• -4

• -12