Whakaoti mō b
b=7
Tohaina
Kua tāruatia ki te papatopenga
-7b-1=-5b-15
Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te b+3.
-7b-1+5b=-15
Me tāpiri te 5b ki ngā taha e rua.
-2b-1=-15
Pahekotia te -7b me 5b, ka -2b.
-2b=-15+1
Me tāpiri te 1 ki ngā taha e rua.
-2b=-14
Tāpirihia te -15 ki te 1, ka -14.
b=\frac{-14}{-2}
Whakawehea ngā taha e rua ki te -2.
b=7
Whakawehea te -14 ki te -2, kia riro ko 7.
Ngā Tauira
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Whakarerekētanga
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