Solving One and Two Step Algebraic Equations

Solve for x in the following equation:

20.5 = x + 4

• 16.5

• 16.05

• 24.5

• 24.05

-3a + 8 = 14

• a= -2

• a= -7.5

• a= 2

• a= 6

3f - 12 = -3

• 3

• -3

• 11

• 12

Solve the equation:
-5x = 25

• x = 20

• x = -20

• x = -5

• x = 5

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

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

19  + a  =  -50

• a = -950

• a =  -69

• a = -31

• a = -50/19

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

• subtraction

• addition

• multiplication

• division

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

What equation matches this situation?
Robyn had some video games then bought 4 more.  Now she has a total of 10 games.

• v - 4 = 10

• v + 4 = 10

• 10 - 4 = v

• Answer not Given

33 = 4a - 7

• a=-10

• a=10

• a=4.5