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-2t-\left(-0.71\right)=0.9\left(1.4-t\right)
Hei kimi i te tauaro o 2t-0.71, kimihia te tauaro o ia taurangi.
-2t+0.71=0.9\left(1.4-t\right)
Ko te tauaro o -0.71 ko 0.71.
-2t+0.71=1.26-0.9t
Whakamahia te āhuatanga tohatoha hei whakarea te 0.9 ki te 1.4-t.
-2t+0.71+0.9t=1.26
Me tāpiri te 0.9t ki ngā taha e rua.
-1.1t+0.71=1.26
Pahekotia te -2t me 0.9t, ka -1.1t.
-1.1t=1.26-0.71
Tangohia te 0.71 mai i ngā taha e rua.
-1.1t=0.55
Tangohia te 0.71 i te 1.26, ka 0.55.
t=\frac{0.55}{-1.1}
Whakawehea ngā taha e rua ki te -1.1.
t=\frac{55}{-110}
Whakarohaina te \frac{0.55}{-1.1} mā te whakarea i te taurunga me te tauraro ki te 100.
t=-\frac{1}{2}
Whakahekea te hautanga \frac{55}{-110} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 55.