Whakaoti mō t
t<-5
Pātaitai
Algebra
7 t + 3 < 4 t - 12
Tohaina
Kua tāruatia ki te papatopenga
7t+3-4t<-12
Tangohia te 4t mai i ngā taha e rua.
3t+3<-12
Pahekotia te 7t me -4t, ka 3t.
3t<-12-3
Tangohia te 3 mai i ngā taha e rua.
3t<-15
Tangohia te 3 i te -12, ka -15.
t<\frac{-15}{3}
Whakawehea ngā taha e rua ki te 3. I te mea he tōrunga te 3, kāore e huri te ahunga koreōrite.
t<-5
Whakawehea te -15 ki te 3, kia riro ko -5.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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whārite paerangi
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
whārite Simultaneous
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Whakarerekētanga
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}