Whakaoti mō x
x<\frac{59}{9}
Graph
Tohaina
Kua tāruatia ki te papatopenga
5\left(x-1\right)+2\left(2x+3\right)<60
Me whakarea ngā taha e rua o te whārite ki te 10, arā, te tauraro pātahi he tino iti rawa te kitea o 2,5. I te mea he tōrunga te 10, kāore e huri te ahunga koreōrite.
5x-5+2\left(2x+3\right)<60
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te x-1.
5x-5+4x+6<60
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 2x+3.
9x-5+6<60
Pahekotia te 5x me 4x, ka 9x.
9x+1<60
Tāpirihia te -5 ki te 6, ka 1.
9x<60-1
Tangohia te 1 mai i ngā taha e rua.
9x<59
Tangohia te 1 i te 60, ka 59.
x<\frac{59}{9}
Whakawehea ngā taha e rua ki te 9. I te mea he tōrunga te 9, kāore e huri te ahunga koreōrite.
Ngā Tauira
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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]
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Whakaurunga
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}