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

5x + 18 = 7x - 6

Step 2: Solve for x

  1. Subtract 5x on both sides:               18 = 2x - 6
  2. Add 6 to both sides:                         24 = 2x
  3. Divide both sides by 2:                     12 = x
  4. Rewrite:                                              x = 12

Step 3: Check

Plug in x to verify it's a solution.

  1. Substitute:                    5(12) + 18 = 7(12) - 6
  2. Multiply:                        60 + 18 = 84 - 6
  3. Add/Subtract:               78 = 78

And we have our final answer!

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