Respuesta :

Space

Answer:

x = 17

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

Step-by-step explanation:

Step 1: Define Equation

-243 = -9(10 + x)

Step 2: Solve for x

  1. Divide -9 on both sides:                    27 = 10 + x
  2. Isolate x:                                             17 = x
  3. Rewrite:                                              x = 17

Step 3: Check

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

  1. Substitute in x:                    -243 = -9(10 + 17)
  2. Add:                                     -243 = -9(27)
  3. Multiply:                               -243 = -243

Here we see that -243 does indeed equal -243.

∴ x = 17 is the solution to the equation.

mayabrown0

Answer:

x = 17

Step-by-step explanation:

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