Solve Add Subtract Multiply One Step Equations All Positive

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.

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.

y - 4.6 = 12

• 16.6

• 5.8

• 7.4

• Answer not Given

Solve for x:

• x = 20

• x = 7

• x = 10

• x = 3

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

Twice a number is 24.

• 2n = 24

• 2/n = 24

• 2 + n = 24

• 2 - n = 24

Blake had some paper airplanes. Then he made 7 more. Now he has 14. How many paper airplanes did Blake start with?

• 6

• 7

• 8

• 5

Sam and Austin are each collecting magazines for recycling.  Sam collected 489 magazines.  Austin collected 893 magazines.  How many magazines did they collect in all?

• 404 magazines

• 1,382 magazines

• 432,212 magazines

• 1.8 magazines

Which equation has x = 5 as the solution?

• x + 15 = 10

• 2x = 5

• 2x = 10

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.