Whakaoti mō x
x=-8
Graph
Tohaina
Kua tāruatia ki te papatopenga
8-0.5x=-12\left(x+7\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 0.5 ki te 16-x.
8-0.5x=-12x-84
Whakamahia te āhuatanga tohatoha hei whakarea te -12 ki te x+7.
8-0.5x+12x=-84
Me tāpiri te 12x ki ngā taha e rua.
8+11.5x=-84
Pahekotia te -0.5x me 12x, ka 11.5x.
11.5x=-84-8
Tangohia te 8 mai i ngā taha e rua.
11.5x=-92
Tangohia te 8 i te -84, ka -92.
x=\frac{-92}{11.5}
Whakawehea ngā taha e rua ki te 11.5.
x=\frac{-920}{115}
Whakarohaina te \frac{-92}{11.5} mā te whakarea i te taurunga me te tauraro ki te 10.
x=-8
Whakawehea te -920 ki te 115, kia riro ko -8.
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