Whakaoti mō x
x = -\frac{15}{4} = -3\frac{3}{4} = -3.75
Graph
Tohaina
Kua tāruatia ki te papatopenga
3x-1=7\left(x+2\right)
Tē taea kia ōrite te tāupe x ki -2 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te x+2.
3x-1=7x+14
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te x+2.
3x-1-7x=14
Tangohia te 7x mai i ngā taha e rua.
-4x-1=14
Pahekotia te 3x me -7x, ka -4x.
-4x=14+1
Me tāpiri te 1 ki ngā taha e rua.
-4x=15
Tāpirihia te 14 ki te 1, ka 15.
x=\frac{15}{-4}
Whakawehea ngā taha e rua ki te -4.
x=-\frac{15}{4}
Ka taea te hautanga \frac{15}{-4} te tuhi anō ko -\frac{15}{4} mā te tango i te tohu tōraro.
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