Whakaoti mō x
x = -\frac{9}{2} = -4\frac{1}{2} = -4.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
25x+125=5x+35
Whakamahia te āhuatanga tohatoha hei whakarea te 25 ki te x+5.
25x+125-5x=35
Tangohia te 5x mai i ngā taha e rua.
20x+125=35
Pahekotia te 25x me -5x, ka 20x.
20x=35-125
Tangohia te 125 mai i ngā taha e rua.
20x=-90
Tangohia te 125 i te 35, ka -90.
x=\frac{-90}{20}
Whakawehea ngā taha e rua ki te 20.
x=-\frac{9}{2}
Whakahekea te hautanga \frac{-90}{20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 10.
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