Whakaoti mō x
x=150
Graph
Tohaina
Kua tāruatia ki te papatopenga
0.3x=0.18x+18
Whakamahia te āhuatanga tohatoha hei whakarea te 0.18 ki te x+100.
0.3x-0.18x=18
Tangohia te 0.18x mai i ngā taha e rua.
0.12x=18
Pahekotia te 0.3x me -0.18x, ka 0.12x.
x=\frac{18}{0.12}
Whakawehea ngā taha e rua ki te 0.12.
x=\frac{1800}{12}
Whakarohaina te \frac{18}{0.12} mā te whakarea i te taurunga me te tauraro ki te 100.
x=150
Whakawehea te 1800 ki te 12, kia riro ko 150.
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