Khatisong ena, re tla sheba hore na tekano ea lipalo (mathematical) ke eng, hape re thathamise thepa ea eona ea mantlha ka mehlala.
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Tlhaloso ea Tekano
Polelo ea lipalo e nang le linomoro (le/kapa litlhaku) le letšoao le lekanang le le arolang likarolo tse peli le bitsoa. tekano ya dipalo.
Ho na le mefuta e 2 ea tekano:
- boitsebahatso Likarolo tseo ka bobeli lia tšoana. Ka mohlala:
- 5 + 12 = 13 + 4
- 3x + 9 = 3 ⋅ (x + 3)
- Tekano - tekano ke 'nete bakeng sa litekanyetso tse itseng tsa litlhaku tse ho eona. Ka mohlala:
- 10x + 20 = 43 + 37
- 15x + 10 = 65 + 5
Thepa ea tekano
Thepa 1
Likarolo tsa tekano li ka fapanyetsanoa, ha e ntse e le 'nete.
Ka mohlala, haeba:
12x + 36 = 24 + 8x
Ka lebaka leo:
24 + 8x = 12x + 36
Thepa 2
O ka eketsa kapa oa tlosa palo e tšoanang (kapa polelo ea lipalo) mahlakoreng ka bobeli a equation. Tekano e ke ke ea hatakeloa.
Ke hore, haeba:
a = b
Kahoo:
- a + x = b + x
- a–y = b–y
mehlala:
16 – 4 = 10 + 2 ⇒16 – 4 + 5 = 10 + 2 + 5 13x + 30 = 7x + 6x + 30 ⇒13x + 30 – y = 7x + 6x + 30 – y
Thepa 3
Haeba mahlakore ka bobeli a equation a atisa kapa a aroloa ka palo e tšoanang (kapa polelo ea lipalo), e ke ke ea tlōloa.
Ke hore, haeba:
a = b
Kahoo:
- a ⋅ x = b ⋅ x
- a: y = b: y
mehlala:
29 + 11 = 32 + 8 ⇒(29 + 11) ⋅ 3 = (32 + 8) ⋅ 3 23x + 46 = 20 – 2 ⇒(23x + 46): y = (20 – 2): y