Respuesta :

Space

Answer:

x = 2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

10.5x - 1.9 = 19.1

Step 2: Solve for x

  1. Add 1.9 to both sides:                    10.5x = 21
  2. Divide 10.5 on both sides:             x = 2

Step 3: Check

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

  1. Substitute in x:                     10.5(2) - 1.9 = 19.1
  2. Multiply:                                21 - 1.9 = 19.1
  3. Subtract:                               19.1 = 19.1

Here we see that 19.1 does indeed equal 19.1.

∴ x = 2 is a solution to the equation.

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