Whakaoti mō x
x=-8
Graph
Tohaina
Kua tāruatia ki te papatopenga
1.9x-3.6-x=-10.8
Tangohia te x mai i ngā taha e rua.
0.9x-3.6=-10.8
Pahekotia te 1.9x me -x, ka 0.9x.
0.9x=-10.8+3.6
Me tāpiri te 3.6 ki ngā taha e rua.
0.9x=-7.2
Tāpirihia te -10.8 ki te 3.6, ka -7.2.
x=\frac{-7.2}{0.9}
Whakawehea ngā taha e rua ki te 0.9.
x=\frac{-72}{9}
Whakarohaina te \frac{-7.2}{0.9} mā te whakarea i te taurunga me te tauraro ki te 10.
x=-8
Whakawehea te -72 ki te 9, kia riro ko -8.
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