Whakaoti mō y
y=1
Graph
Tohaina
Kua tāruatia ki te papatopenga
21y-14-7=0
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te 3y-2.
21y-21=0
Tangohia te 7 i te -14, ka -21.
21y=21
Me tāpiri te 21 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
y=\frac{21}{21}
Whakawehea ngā taha e rua ki te 21.
y=1
Whakawehea te 21 ki te 21, kia riro ko 1.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
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Arithmetic
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Poukapa
\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
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}