Whakaoti mō x
x=-\frac{21}{53}\approx -0.396226415
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x-21-57x=0
Tangohia te 57x mai i ngā taha e rua.
-53x-21=0
Pahekotia te 4x me -57x, ka -53x.
-53x=21
Me tāpiri te 21 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{21}{-53}
Whakawehea ngā taha e rua ki te -53.
x=-\frac{21}{53}
Ka taea te hautanga \frac{21}{-53} te tuhi anō ko -\frac{21}{53} mā te tango i te tohu tōraro.
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