Respuesta :

Space

Answer:

x = 12

General Formulas and Concepts:

Pre-Algebra

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

Step 1: Define equation

3x - 7 = 29

Step 2: Solve for x

  1. Add 7 on both sides:                    3x = 36
  2. Divide 3 on both sides:                x = 12

Step 3: Check

Plug in x to verify it's a solution.

  1. Substitute:                    3(12) - 7 = 29
  2. Multiply:                        36 - 7 = 29
  3. Subtract:                       29 = 29

Here we see that 29 does indeed equal 29.

∴ x = 12 is a solution of the equation.

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