Whakaoti mō x
x=2
Graph
Tohaina
Kua tāruatia ki te papatopenga
\left(x+1\right)\times 2+x\times 3=\left(x+1\right)\times 4
Tē taea kia ōrite te tāupe x ki tētahi o ngā uara -1,0 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te x\left(x+1\right), arā, te tauraro pātahi he tino iti rawa te kitea o x,x+1.
2x+2+x\times 3=\left(x+1\right)\times 4
Whakamahia te āhuatanga tohatoha hei whakarea te x+1 ki te 2.
5x+2=\left(x+1\right)\times 4
Pahekotia te 2x me x\times 3, ka 5x.
5x+2=4x+4
Whakamahia te āhuatanga tohatoha hei whakarea te x+1 ki te 4.
5x+2-4x=4
Tangohia te 4x mai i ngā taha e rua.
x+2=4
Pahekotia te 5x me -4x, ka x.
x=4-2
Tangohia te 2 mai i ngā taha e rua.
x=2
Tangohia te 2 i te 4, ka 2.
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