Whakaoti mō c
c=2
Tohaina
Kua tāruatia ki te papatopenga
3c+30=15c+6
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te 5c+2.
3c+30-15c=6
Tangohia te 15c mai i ngā taha e rua.
-12c+30=6
Pahekotia te 3c me -15c, ka -12c.
-12c=6-30
Tangohia te 30 mai i ngā taha e rua.
-12c=-24
Tangohia te 30 i te 6, ka -24.
c=\frac{-24}{-12}
Whakawehea ngā taha e rua ki te -12.
c=2
Whakawehea te -24 ki te -12, kia riro ko 2.
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