Whakaoti mō x
x=48
Graph
Tohaina
Kua tāruatia ki te papatopenga
120+2x=\left(60-x\right)\times 18
Whakamahia te āhuatanga tohatoha hei whakarea te 60+x ki te 2.
120+2x=1080-18x
Whakamahia te āhuatanga tohatoha hei whakarea te 60-x ki te 18.
120+2x+18x=1080
Me tāpiri te 18x ki ngā taha e rua.
120+20x=1080
Pahekotia te 2x me 18x, ka 20x.
20x=1080-120
Tangohia te 120 mai i ngā taha e rua.
20x=960
Tangohia te 120 i te 1080, ka 960.
x=\frac{960}{20}
Whakawehea ngā taha e rua ki te 20.
x=48
Whakawehea te 960 ki te 20, kia riro ko 48.
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