Tīpoka ki ngā ihirangi matua
Whakaoti mō x
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Tohaina

2x-5x-15=0
Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te x+3.
-3x-15=0
Pahekotia te 2x me -5x, ka -3x.
-3x=15
Me tāpiri te 15 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{15}{-3}
Whakawehea ngā taha e rua ki te -3.
x=-5
Whakawehea te 15 ki te -3, kia riro ko -5.