Whakaoti mō r
r=-6
Tohaina
Kua tāruatia ki te papatopenga
1+8r=\frac{94}{-2}
Whakawehea ngā taha e rua ki te -2.
1+8r=-47
Whakawehea te 94 ki te -2, kia riro ko -47.
8r=-47-1
Tangohia te 1 mai i ngā taha e rua.
8r=-48
Tangohia te 1 i te -47, ka -48.
r=\frac{-48}{8}
Whakawehea ngā taha e rua ki te 8.
r=-6
Whakawehea te -48 ki te 8, kia riro ko -6.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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