Whakaoti mō x
x=-0.125
Graph
Tohaina
Kua tāruatia ki te papatopenga
-0.8x-0.1=0
Pahekotia te 0.2x me -x, ka -0.8x.
-0.8x=0.1
Me tāpiri te 0.1 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{0.1}{-0.8}
Whakawehea ngā taha e rua ki te -0.8.
x=\frac{1}{-8}
Whakarohaina te \frac{0.1}{-0.8} mā te whakarea i te taurunga me te tauraro ki te 10.
x=-\frac{1}{8}
Ka taea te hautanga \frac{1}{-8} te tuhi anō ko -\frac{1}{8} mā te tango i te tohu tōraro.
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