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Egyenletek1

EGYENLETMEGOLDÁS
15 + x = 0 x = –15
15 – x = 0 x = 15
15 ∙ x = 0 x = 0
15 ∙ x = 1 x = 1/15
15 + 3 ∙ x = 0 x = –15 : 3
15 – 3 ∙ x = 0 x = 15 : 3
x + 3 = 15 x = 15 – 3
x – 3 = 15 x = 15 + 3
3 – x = 15 x = –(15 – 3)
3 ∙ x = 15 x = 15 : 3
x : 3 = 15 x = 15 ∙ 3
3 : x = 15 x = 3 : 15
2 ∙ x + 3 = 15 x = (15 – 3) : 2
2 ∙ x – 3 = 15 x = (15 + 3) : 2
x + 3 = –15 x = –15 – 3
x – 3 = –15 x = –15 + 3
3 ∙ x = –15 x = –15 : 3
x : 3 = –15 x = –15 ∙ 3
2 ∙ x + 3 = –15 x = (–15 – 3) : 2
2 ∙ x – 3 = –15 x = (–15 + 3) : 2
2 ∙ (x + 3) = 15 x = 15 : 2 – 3
2 ∙ (x – 3) = 15 x = 15 : 2 + 3
2 ∙ (x + 3) = –15 x = –15 : 2 – 3
Created by: MRX71
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