Whakaoti mō x
x=3
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x+2x+2=23
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x+1.
7x+2=23
Pahekotia te 5x me 2x, ka 7x.
7x=23-2
Tangohia te 2 mai i ngā taha e rua.
7x=21
Tangohia te 2 i te 23, 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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