Whakaoti mō x
x = \frac{9}{4} = 2\frac{1}{4} = 2.25
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x\times 2+27\times 3=90
Whakareatia ngā taha e rua o te whārite ki te 2.
4x+27\times 3=90
Whakareatia te 2 ki te 2, ka 4.
4x+81=90
Whakareatia te 27 ki te 3, ka 81.
4x=90-81
Tangohia te 81 mai i ngā taha e rua.
4x=9
Tangohia te 81 i te 90, ka 9.
x=\frac{9}{4}
Whakawehea ngā taha e rua ki te 4.
Ngā Tauira
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