Lesson 6-1 Use Substitution to Solve One-Step Equations

Is 13, 14, or 15 the solution of the equation a + 12.3 = 27.3?

• 13

• 14

• 15

Is 18, 19, or 20 the solution of the equation 3.6 + r = 21.6

• 18

• 19

• 20

Is 10, 11, or 12 the solution of the equation b – 3.3 = 8.7?

• 10

• 11

• 12

Is 13, 14, or 15 the solution of the equation z − 6.4 = 7.6

• 13

• 14

• 15

Is 10, 11, or 12 the solution of the equation e − 4.9 = 5.1?

• 10

• 11

• 12

Is 16, 17, or 18 the solution of the equation i – 8.2 = 7.8

• 16

• 17

• 18

Is 7, 8, or 9 the solution of the equation 4.25y = 34

• 7

• 8

• 9

Is 5, 6, or 7 the solution of the equation 3.5a = 21

• 5

• 6

• 7

Is 12, 13, or 14 the solution of the equation 2.75x = 33

• 12

• 13

• 14

Is 8, 9, or 10 the solution of the equation 5.25d = 42

• 8

• 9

• 10