Whakaoti mō x
x=-14
Graph
Tohaina
Kua tāruatia ki te papatopenga
21x+0=13x-112
Whakareatia te 0 ki te 8, ka 0.
21x=13x-112
Ko te tau i tāpiria he kore ka hua koia tonu.
21x-13x=-112
Tangohia te 13x mai i ngā taha e rua.
8x=-112
Pahekotia te 21x me -13x, ka 8x.
x=\frac{-112}{8}
Whakawehea ngā taha e rua ki te 8.
x=-14
Whakawehea te -112 ki te 8, kia riro ko -14.
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