Whakaoti mō x
x=90
Graph
Tohaina
Kua tāruatia ki te papatopenga
12x-10x-160=20
Whakamahia te āhuatanga tohatoha hei whakarea te -10 ki te x+16.
2x-160=20
Pahekotia te 12x me -10x, ka 2x.
2x=20+160
Me tāpiri te 160 ki ngā taha e rua.
2x=180
Tāpirihia te 20 ki te 160, ka 180.
x=\frac{180}{2}
Whakawehea ngā taha e rua ki te 2.
x=90
Whakawehea te 180 ki te 2, kia riro ko 90.
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