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Solve for "X" 7x+-4=3(x-7)+25

Sagot :

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

7x + -4 = 3(x - 7) + 25

Step 2: Solve for x

  1. Simplify equation:                     7x - 4 = 3(x - 7) + 25
  2. Distribute 3:                               7x - 4 = 3x - 21 + 25
  3. Add:                                           7x - 4 = 3x + 4
  4. Subtract 3x on both sides:       4x - 4 = 4
  5. Add 4 on both sides:                4x = 8
  6. Divide 4 on both sides:             x = 2