Whakaoti mō x
x=16
Graph
Tohaina
Kua tāruatia ki te papatopenga
x+16x+4x-16+4x+16=400
Whakareatia ngā taha e rua o te whārite ki te 4.
17x+4x-16+4x+16=400
Pahekotia te x me 16x, ka 17x.
21x-16+4x+16=400
Pahekotia te 17x me 4x, ka 21x.
25x-16+16=400
Pahekotia te 21x me 4x, ka 25x.
25x=400
Tāpirihia te -16 ki te 16, ka 0.
x=\frac{400}{25}
Whakawehea ngā taha e rua ki te 25.
x=16
Whakawehea te 400 ki te 25, kia riro ko 16.
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