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2(w-1)+8=6(2w-4) pls help

User Fredarin
by
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2 Answers

2 votes
-10w divided by -10
-30 divided by -10
W=3
User Emil Oberg
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5.5k points
2 votes

Answer:

w = 3

General Formulas and Concepts:

Pre-Algebra

  • Order of Operations: BPEMDAS
  • Equality Properties

Explanation:

Step 1: Define equation

2(w - 1) + 8 = 6(2w - 4)

Step 2: Solve for w

  1. Distribute: 2w - 2 + 8 = 12w - 24
  2. Combine like terms: 2w + 6 = 12w - 24
  3. Subtract 2w on both sides: 6 = 10w - 24
  4. Add 24 on both sides: 30 = 10w
  5. Divide 10 on both sides: 3 = w
  6. Rewrite: w = 3

Step 3: Check

Plug in w into the original equation to verify it is a solution.

  1. Substitute in w: 2(3 - 1) + 8 = 6(2(3) - 4)
  2. Multiply: 2(3 - 1) + 8 = 6(6 - 4)
  3. Subtract: 2(2) + 8 = 6(2)
  4. Multiply: 4 + 8 = 12
  5. Add: 12 = 12

Here we see that 12 does indeed equal 12.

∴ w = 3 is a solution of the equation.

User DinoMyte
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5.4k points