Whakaoti mō x
x=3
Graph
Tohaina
Kua tāruatia ki te papatopenga
15x+5=8x+26
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 3x+1.
15x+5-8x=26
Tangohia te 8x mai i ngā taha e rua.
7x+5=26
Pahekotia te 15x me -8x, ka 7x.
7x=26-5
Tangohia te 5 mai i ngā taha e rua.
7x=21
Tangohia te 5 i te 26, ka 21.
x=\frac{21}{7}
Whakawehea ngā taha e rua ki te 7.
x=3
Whakawehea te 21 ki te 7, kia riro ko 3.
Ngā Tauira
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