Whakaoti mō x
x=420
Graph
Tohaina
Kua tāruatia ki te papatopenga
25+10x=4225
Pahekotia te x^{2} me -x^{2}, ka 0.
10x=4225-25
Tangohia te 25 mai i ngā taha e rua.
10x=4200
Tangohia te 25 i te 4225, ka 4200.
x=\frac{4200}{10}
Whakawehea ngā taha e rua ki te 10.
x=420
Whakawehea te 4200 ki te 10, kia riro ko 420.
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