Whakaoti mō w
w=-7
Tohaina
Kua tāruatia ki te papatopenga
-6w+3w-6=15
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te w-2.
-3w-6=15
Pahekotia te -6w me 3w, ka -3w.
-3w=15+6
Me tāpiri te 6 ki ngā taha e rua.
-3w=21
Tāpirihia te 15 ki te 6, ka 21.
w=\frac{21}{-3}
Whakawehea ngā taha e rua ki te -3.
w=-7
Whakawehea te 21 ki te -3, kia riro ko -7.
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