Whakaoti mō x
x=3
Graph
Tohaina
Kua tāruatia ki te papatopenga
30x+10=25+25x
Whakamahia te āhuatanga tohatoha hei whakarea te 25 ki te 1+x.
30x+10-25x=25
Tangohia te 25x mai i ngā taha e rua.
5x+10=25
Pahekotia te 30x me -25x, ka 5x.
5x=25-10
Tangohia te 10 mai i ngā taha e rua.
5x=15
Tangohia te 10 i te 25, ka 15.
x=\frac{15}{5}
Whakawehea ngā taha e rua ki te 5.
x=3
Whakawehea te 15 ki te 5, kia riro ko 3.
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]
whārite Simultaneous
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Whakarerekētanga
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Whakaurunga
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}