Εξισώσεις

Εξισώσεις

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Ποια παράσταση δίνει τη λύση της εξίσωσης;

x + 2 = 3 ∙ 4
1. x = 3 ∙ 4 – 2
2. x = 3 ∙ 4 + 2
3. x = 3 ∙ 4 ∙ 2
4. x = 3 ∙ 4
  2
x + 2 = 9
3
1. x = 9
  3 – 2
2. x = 9
  3 + 2
3. x = 9 ∙ 2
  3
4. x = 9
  3 ∙ 2
x – 2 = 3 ∙ 4
1. x = 3 ∙ 4 + 2
2. x = 3 ∙ 4 – 2
3. x = 3 ∙ 4 ∙ 2
4. x = 3 ∙ 4
  2
x – 2 = 10
5
1. x = 10
  5 + 2
2. x = 10
  5 – 2
3. x = 10 ∙ 2
  5
4. x = 10
  5 ∙ 2
10 – x = 2 ∙ 3
1. x = 10 – 2 ∙ 3
2. x = 10 + 2 ∙ 3
3. x = 10 ∙ 2 ∙ 3
4. x = 2 ∙ 3
  10
10 – x = 6
3
1. x = 10 – 6
  3
2. x = 10 + 6
  3
3. x = 6 ∙ 10
  3
4. x = 6
  3 ∙ 10
2 ∙ x = 3 ∙ 4
1. x = 3 ∙ 4
  2
2. x = 3 ∙ 4 ∙ 2
3. x = 3 ∙ 4 + 2
4. x = 3 ∙ 4 – 2
x
2 = 3 ∙ 4
1. x = 3 ∙ 4 ∙ 2
2. x = 3 ∙ 4
  2
3. x = 3 ∙ 4 + 2
4. x = 3 ∙ 4 – 2
2 ∙ x = 20
10
1. x = 20
  10 ∙ 2
2. x = 20 ∙ 2
  10
3. x = 20
  10 + 2
4. x = 20
  10 – 2
x
2 = 10
5
1. x = 10 ∙ 2
  5
2. x = 10
  5 ∙ 2
3. x = 10
  5 + 2
4. x = 10
  5 – 2
2 ∙ x = 5 + 3
1. x = 5 + 3
  2
2. x = (5 + 3) ∙ 2
3. x = 5 + 3 + 2
4. x = 5 + 3 – 2
2 ∙ x = 5 – 3
1. x = 5 – 3
  2
2. x = (5 – 3) ∙ 2
3. x = 5 – 3 + 2
4. x = 5 – 3 – 2
x
2 = 3 + 4
1. x = (3 + 4) ∙ 2
2. x = 3 + 4
  2
3. x = 3 + 4 + 2
4. x = 3 + 4 – 2
x
2 = 5 – 3
1. x = (5 – 3) ∙ 2
2. x = 5 – 3
  2
3. x = 5 – 3 + 2
4. x = 5 – 3 – 2
15 – x = 3 ∙ 4
1. x = 15 – 3 ∙ 4
2. x = 3 ∙ 4 + 15
3. x = 15
  3 ∙ 4
4. x = 3 ∙ 4
  15

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