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solniwko [45]
3 years ago
8

-8 = 2y – 2 answer please

Mathematics
2 answers:
emmasim [6.3K]3 years ago
8 0
Y=-3
Add 2 to both sides the -2 &-8
-8 becomes -6 then divide by 2
Y=-3
Rufina [12.5K]3 years ago
3 0

Answer:

y = -3

General Formulas and Concepts:

<u>Pre-Algebra</u>

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
  • Subtraction Property of Equality<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

-8 = 2y - 2

<u>Step 2: Solve for </u><em><u>y</u></em>

  1. [Addition Property of Equality] Add 2 on both sides:                                  -6 = 2y
  2. [Division Property of Equality] Divide 2 on both sides:                               -3 = y
  3. Rewrite/Rearrange:                                                                                         y = -3

<u>Step 3: Check</u>

<em>Plug in y into the original equation to verify it's a solution.</em>

  1. Substitute in <em>y</em>:                                                                                                -8 = 2(-3) - 2
  2. Multiply:                                                                                                           -8 = -6 - 2
  3. Subtract:                                                                                                          -8 = -8

Here we see that -8 does indeed equal -8.

∴ y = -3 is the solution to the equation.

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