Tīpoka ki ngā ihirangi matua
Aromātai
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Tauwehe
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

-25-4x-5+12
Tātaihia te -5 mā te pū o 2, kia riro ko 25.
-30-4x+12
Tangohia te 5 i te -25, ka -30.
-18-4x
Tāpirihia te -30 ki te 12, ka -18.
-4x-18
Whakarea ka paheko i ngā kīanga tau ōrite.
2\left(-2x-9\right)
Tauwehea te 2.