One Step Equations with Positive Rational Numbers

Why do you multiply by 7 on both sides?

• To undo division, you must multiply.

• To balance the equation, you must divide by 7 on both sides.

• To undo multiplication, you must divide.

• To balance the equation, you must multiply by 7 on both sides.

What is the solution of the equation? 
1/3a = 7/9

• 2  1/3

• 1  2/7

• 7/27

• 1/3

Solve

• 9.7

• 7.9

• 97

• 79

Why do you divide by 5?

• To undo division, you must multiply.

• To balance the equation, you must divide by 5 on both sides.

• To undo multiplication, you must divide.

• To balance the equation, you must multiply by 5 on both sides.

Solve for x:
1243.8=2.4x

• 518.25

• 2985.12

• 1241.4

• 1246.2

Solve for x:
0.2x=1246

• 6230

• 6.23

• 0.623

• 62.3

Solve for x:
x/32.4=22

x=_

13x = 65

• x = 4

• x = 5

• x = -3

• x = 7

Solve the equation:
x - 5.5 = 10.5

• x = 16

• x = -15

• x = 5

• x = -5

Solve for x:
x/32.4=22

• 56

• 16.2

• 0.64

• 712.8