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Phoenix [80]
2 years ago
13

Evaluate 5(x - 1) - 2 when x = 3

Mathematics
1 answer:
Elan Coil [88]2 years ago
4 0

Answer:

8

Step-by-step explanation:

Given algebraic expression:

5(x - 1) - 2

To:

Evaluate this expression using x = 3

Solution:

  • 5(x - 1) - 2

Evaluate by plugging x = 3 to this expression:

  • 5(3-1)-2

Simplify using PEMDAS.

  • 5(2)-2
  • 10-2
  • 8

<u>We can conclude:</u>

By evaluating x = 3 to the given expression,the answer will be 8.

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Vitek1552 [10]

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Step-by-step explanation:

<em>Reflection across x-axis</em>

<em>The rule used for Reflection across x-axis is that y-coordinate becomes negated while x coordinate remains same.</em>

So,

The coordinates of the point that is a reflection of Y(-4, -2) across the x-axis are ( -4,2).

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<em>Reflection across y-axis</em>

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So,

The coordinates of the point that is a reflection of Y across the y-axis are ( 4,-2).

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