Whakaoti mō x
x=75
Graph
Tohaina
Kua tāruatia ki te papatopenga
0.06x+8-0.08x=6.5
Whakamahia te āhuatanga tohatoha hei whakarea te 0.08 ki te 100-x.
-0.02x+8=6.5
Pahekotia te 0.06x me -0.08x, ka -0.02x.
-0.02x=6.5-8
Tangohia te 8 mai i ngā taha e rua.
-0.02x=-1.5
Tangohia te 8 i te 6.5, ka -1.5.
x=\frac{-1.5}{-0.02}
Whakawehea ngā taha e rua ki te -0.02.
x=\frac{-150}{-2}
Whakarohaina te \frac{-1.5}{-0.02} mā te whakarea i te taurunga me te tauraro ki te 100.
x=75
Whakawehea te -150 ki te -2, kia riro ko 75.
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