Whakaoti mō t
t = -\frac{14}{5} = -2\frac{4}{5} = -2.8
Tohaina
Kua tāruatia ki te papatopenga
5\left(3t-2\right)=4\left(5t+1\right)
Me whakarea ngā taha e rua o te whārite ki te 20, arā, te tauraro pātahi he tino iti rawa te kitea o 4,5.
15t-10=4\left(5t+1\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 3t-2.
15t-10=20t+4
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te 5t+1.
15t-10-20t=4
Tangohia te 20t mai i ngā taha e rua.
-5t-10=4
Pahekotia te 15t me -20t, ka -5t.
-5t=4+10
Me tāpiri te 10 ki ngā taha e rua.
-5t=14
Tāpirihia te 4 ki te 10, ka 14.
t=\frac{14}{-5}
Whakawehea ngā taha e rua ki te -5.
t=-\frac{14}{5}
Ka taea te hautanga \frac{14}{-5} te tuhi anō ko -\frac{14}{5} mā te tango i te tohu tōraro.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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Whakarerekētanga
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