Whakaoti mō x
x=-12
Graph
Tohaina
Kua tāruatia ki te papatopenga
170x+330-130x=-150
Tangohia te 130x mai i ngā taha e rua.
40x+330=-150
Pahekotia te 170x me -130x, ka 40x.
40x=-150-330
Tangohia te 330 mai i ngā taha e rua.
40x=-480
Tangohia te 330 i te -150, ka -480.
x=\frac{-480}{40}
Whakawehea ngā taha e rua ki te 40.
x=-12
Whakawehea te -480 ki te 40, kia riro ko -12.
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