Whakaoti mō x
x = -\frac{4}{3} = -1\frac{1}{3} \approx -1.333333333
Graph
Tohaina
Kua tāruatia ki te papatopenga
\left(x+4\right)\left(20-2\right)=48
Whakawehea te 40 ki te 2, kia riro ko 20.
\left(x+4\right)\times 18=48
Tangohia te 2 i te 20, ka 18.
18x+72=48
Whakamahia te āhuatanga tohatoha hei whakarea te x+4 ki te 18.
18x=48-72
Tangohia te 72 mai i ngā taha e rua.
18x=-24
Tangohia te 72 i te 48, ka -24.
x=\frac{-24}{18}
Whakawehea ngā taha e rua ki te 18.
x=-\frac{4}{3}
Whakahekea te hautanga \frac{-24}{18} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 6.
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