Whakaoti mō x
x = -\frac{7}{3} = -2\frac{1}{3} \approx -2.333333333
Graph
Tohaina
Kua tāruatia ki te papatopenga
30x-56=21\left(3x+1\right)
Me whakarea ngā taha e rua o te whārite ki te 42, arā, te tauraro pātahi he tino iti rawa te kitea o 7,3,2.
30x-56=63x+21
Whakamahia te āhuatanga tohatoha hei whakarea te 21 ki te 3x+1.
30x-56-63x=21
Tangohia te 63x mai i ngā taha e rua.
-33x-56=21
Pahekotia te 30x me -63x, ka -33x.
-33x=21+56
Me tāpiri te 56 ki ngā taha e rua.
-33x=77
Tāpirihia te 21 ki te 56, ka 77.
x=\frac{77}{-33}
Whakawehea ngā taha e rua ki te -33.
x=-\frac{7}{3}
Whakahekea te hautanga \frac{77}{-33} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 11.
Ngā Tauira
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