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VikaD [51]
3 years ago
12

Mary multiplied a number by -3. When she added the result to 6, she got 12. What is her number?

Mathematics
1 answer:
ipn [44]3 years ago
5 0
X×-3+6=12, -3×=12-6, -3x=6 |÷-3, x=-2
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If the vertex of a parabola is (0, 3), what is the axis of symmetry
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Answer:

The equation of the axis of symmetry for this parabola is x = 0.

Step-by-step explanation:

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BigorU [14]

Answer:

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General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

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Step-by-step explanation:

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

4(x + 4) = 6(x - 2)

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

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  2. Subtract 4x on both sides:         16 = 2x - 12
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  5. Rewrite:                                       x = 14

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitute:                    4(14 + 4) = 6(14 - 2)
  2. Add/Subtract:               4(18) = 6(12)
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Answer:

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