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nydimaria [60]
2 years ago
14

X - 4y = 12 X - 5y = 15 PLS HELP ME SOLVE USING ELIMINATION

Mathematics
1 answer:
balu736 [363]2 years ago
7 0

Answer:

(0, -3)

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define systems</u>

x - 4y = 12

x - 5y = 15

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

<em>Elimination</em>

  1. Subtract 2 equations:                    y = -3

<u>Step 3: Solve for </u><em><u>x</u></em>

  1. Define original equation:                    x - 4y = 12
  2. Substitute in <em>y</em>:                                     x - 4(-3) = 12
  3. Multiply:                                                x + 12 = 12
  4. Subtract 12 on both sides:                  x = 0
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