Solving One Step Equations with Substitution

This video tutorial covers solving one-step equations using substitution. It includes three examples: determining the solution for P + 9.7 = 13.7, checking solutions for m + 4/5 = 2 4/5, and using the guess and check method to solve 4.5p = 36. The video emphasizes substituting values to verify solutions and encourages practice with provided problems.

What is the main topic of this lesson?

• Factoring polynomials

• Graphing linear equations

• Using substitution to solve one-step equations

• Solving quadratic equations

What is the correct value of P in the equation P + 9.7 = 13.7?

• 4

• 5

• 3

• 6

Why is P = 3 not a solution for the equation P + 9.7 = 13.7?

• Because 3 + 9.7 equals 15.7

• Because 3 + 9.7 equals 13.7

• Because 3 + 9.7 equals 12.7

• Because 3 + 9.7 equals 14.7

In the equation m + 4/5 = 2 4/5, which value of m makes the equation true?

• 2

• 3

• 1

• 4

What is the result when m = 1 in the equation m + 4/5 = 2 4/5?

• 3 4/5

• 4 4/5

• 2 4/5

• 1 4/5

What strategy is used to solve the equation 4.5P = 36?

• Graphing

• Guess, check, and revise

• Factoring

• Trial and error

What is the value of P when 4.5P = 36?

• 6

• 9

• 8

• 7

Why is P = 6 not a solution for the equation 4.5P = 36?

• Because 4.5 * 6 equals 36

• Because 4.5 * 6 equals 27

• Because 4.5 * 6 equals 30

• Because 4.5 * 6 equals 33

What is the result when P = 7 in the equation 4.5P = 36?

• 31.5

• 32.5

• 33.5

• 34.5

How many planks does Navia need to build a door that is 36 inches wide?

• 6

• 7

• 8

• 9