Whakaoti mō b
b=\frac{f-5}{20}
Whakaoti mō f
f=20b+5
Tohaina
Kua tāruatia ki te papatopenga
40b=2f-10
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
\frac{40b}{40}=\frac{2f-10}{40}
Whakawehea ngā taha e rua ki te 40.
b=\frac{2f-10}{40}
Mā te whakawehe ki te 40 ka wetekia te whakareanga ki te 40.
b=\frac{f}{20}-\frac{1}{4}
Whakawehe -10+2f ki te 40.
2f=40b+10
Me tāpiri te 10 ki ngā taha e rua.
\frac{2f}{2}=\frac{40b+10}{2}
Whakawehea ngā taha e rua ki te 2.
f=\frac{40b+10}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
f=20b+5
Whakawehe 40b+10 ki te 2.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
y = 3x + 4
Arithmetic
699 * 533
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
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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}