Whakaoti mō x
x=3
Graph
Tohaina
Kua tāruatia ki te papatopenga
20x-52=2x-5+x+4
Whakareatia ngā taha e rua o te whārite ki te 4.
20x-52=3x-5+4
Pahekotia te 2x me x, ka 3x.
20x-52=3x-1
Tāpirihia te -5 ki te 4, ka -1.
20x-52-3x=-1
Tangohia te 3x mai i ngā taha e rua.
17x-52=-1
Pahekotia te 20x me -3x, ka 17x.
17x=-1+52
Me tāpiri te 52 ki ngā taha e rua.
17x=51
Tāpirihia te -1 ki te 52, ka 51.
x=\frac{51}{17}
Whakawehea ngā taha e rua ki te 17.
x=3
Whakawehea te 51 ki te 17, kia riro ko 3.
Ngā Tauira
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