Whakaoti mō r
r=-95
Tohaina
Kua tāruatia ki te papatopenga
r-15=2r+80
Whakareatia ngā taha e rua o te whārite ki te 5.
r-15-2r=80
Tangohia te 2r mai i ngā taha e rua.
-r-15=80
Pahekotia te r me -2r, ka -r.
-r=80+15
Me tāpiri te 15 ki ngā taha e rua.
-r=95
Tāpirihia te 80 ki te 15, ka 95.
r=-95
Me whakarea ngā taha e rua ki te -1.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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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
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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}