Respuesta :

Space

Answer:

x = 2

General Formulas and Concepts:

Pre-Algebra

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

Step 1: Define equation

3(x + 8) = 30

Step 2: Solve for x

  1. Divide 3 on both sides:                              x + 8 = 10
  2. Subtract 8 on both sides:                           x = 2

Step 3: Check

Plug in x into the original equation to verify it is a solution.

  1. Substitute in x:                    3(2 + 8) = 30
  2. Add:                                     3(10) = 30
  3. Multiply:                               30 = 30

Here we see that 30 does indeed equal 30.

∴ x = 2 is a solution of the equation.

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