Solving Two and One Step Equations

y + 65 = 182

• y = 107

• y = 117

• y = 247

• y = 123

z - 33 = 234

• z = 267

• z = 231

• z = 317

• z = 281

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.

For which equation is b=4 a solution?

• 4b=1

• b/2=8

• b+4=0

• b-14=-10

How would you solve this equation: 9x=153?

• multiply

• divide

• add

• subtract

The variable, k, is being divided by 11. How should you show your work to isolate the variable?

• Divide both sides by 11

• Multiply both sides by 11.

• Add 11 to both sides.

• Subtract 11 to both sides.

Which equation has w = 8 as the solution?

• 8w= 64

• 16w = 240

• 16 - w = 9

• 4 + w = 10

How can you "convince" someone that your solution to an equation is correct?

• Tell them ... "Just trust me!"

• Substitute your solution for the variable and make sure that both sides of the equation are "balanced."

• Just keep showing them how to solve the equation.

x - 8 = -5 

• 13

• -13

• 3

• -3

What is the inverse operation needed to solve for p?
765 = p - 254

• subtraction

• addition

• multiplication

• division