Whakaoti mō c
c=-3
Tohaina
Kua tāruatia ki te papatopenga
-4c-14c+21+2c-5=56+8
Whakamahia te āhuatanga tohatoha hei whakarea te -7 ki te 2c-3.
-18c+21+2c-5=56+8
Pahekotia te -4c me -14c, ka -18c.
-16c+21-5=56+8
Pahekotia te -18c me 2c, ka -16c.
-16c+16=56+8
Tangohia te 5 i te 21, ka 16.
-16c+16=64
Tāpirihia te 56 ki te 8, ka 64.
-16c=64-16
Tangohia te 16 mai i ngā taha e rua.
-16c=48
Tangohia te 16 i te 64, ka 48.
c=\frac{48}{-16}
Whakawehea ngā taha e rua ki te -16.
c=-3
Whakawehea te 48 ki te -16, kia riro ko -3.
Ngā Tauira
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