Respuesta :

meowmeow223334
2.4x + 4.6x = 7
7x = 28
X = 4
Space

Answer:

x = 4

General Formulas and Concepts:

Pre-Algebra

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

Step 1: Define

2.4x + 4.6x = 28

Step 2: Solve for x

  1. Combine like terms (x):                    7x = 28
  2. Divide 7 on both sides:                    x = 4

Step 3: Check

Plug in x to verify it's a solution.

  1. Substitute in x:                    2.4(4) + 4.6(4) = 28
  2. Multiply:                               9.6+ 18.4= 28
  3. Add:                                     28 = 28

Here we see that 28 does indeed equal 28.

∴ x = 4 is a solution of the equation.

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