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Tohaina

3m+35=280
Pahekotia te -2m me 5m, ka 3m.
3m=280-35
Tangohia te 35 mai i ngā taha e rua.
3m=245
Tangohia te 35 i te 280, ka 245.
m=\frac{245}{3}
Whakawehea ngā taha e rua ki te 3.