Whakaoti mō x
x=-4
Graph
Tohaina
Kua tāruatia ki te papatopenga
5\left(x+8\right)=4\left(x+9\right)
Tē taea kia ōrite te tāupe x ki -9 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 5\left(x+9\right), arā, te tauraro pātahi he tino iti rawa te kitea o x+9,5.
5x+40=4\left(x+9\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te x+8.
5x+40=4x+36
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x+9.
5x+40-4x=36
Tangohia te 4x mai i ngā taha e rua.
x+40=36
Pahekotia te 5x me -4x, ka x.
x=36-40
Tangohia te 40 mai i ngā taha e rua.
x=-4
Tangohia te 40 i te 36, ka -4.
Ngā Tauira
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