Respuesta :

Space

Answer:

a = 24

General Formulas and Concepts:

Pre-Algebra

  • Equality Properties

Step-by-step explanation:

Step 1: Define Equation

-a = -24

Step 2: Solve for a

  1. Divide both sides by -1:                    a = 24

Step 3: Check

Plug in a into the original equation to verify it's a solution.

  1. Substitute in a:                    -(24) = -24
  2. Multiply:                               -24 = -24

Here we see that -24 does indeed equal -24.

∴ a = 24 is the solution to the equation.

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