Whakaoti mō x
x=2
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Tohaina
Kua tāruatia ki te papatopenga
3x-3=18-5\left(x+1\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te x-1.
3x-3=18-5x-5
Whakamahia te āhuatanga tohatoha hei whakarea te -5 ki te x+1.
3x-3=13-5x
Tangohia te 5 i te 18, ka 13.
3x-3+5x=13
Me tāpiri te 5x ki ngā taha e rua.
8x-3=13
Pahekotia te 3x me 5x, ka 8x.
8x=13+3
Me tāpiri te 3 ki ngā taha e rua.
8x=16
Tāpirihia te 13 ki te 3, ka 16.
x=\frac{16}{8}
Whakawehea ngā taha e rua ki te 8.
x=2
Whakawehea te 16 ki te 8, kia riro ko 2.
Ngā Tauira
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whārite Simultaneous
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Whakarerekētanga
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