Whakaoti mō w
w=9
Tohaina
Kua tāruatia ki te papatopenga
-6w-6=-9w+21
Whakamahia te āhuatanga tohatoha hei whakarea te -6 ki te w+1.
-6w-6+9w=21
Me tāpiri te 9w ki ngā taha e rua.
3w-6=21
Pahekotia te -6w me 9w, ka 3w.
3w=21+6
Me tāpiri te 6 ki ngā taha e rua.
3w=27
Tāpirihia te 21 ki te 6, ka 27.
w=\frac{27}{3}
Whakawehea ngā taha e rua ki te 3.
w=9
Whakawehea te 27 ki te 3, kia riro ko 9.
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