Whakaoti mō x
x = \frac{21}{4} = 5\frac{1}{4} = 5.25
Graph
Tohaina
Kua tāruatia ki te papatopenga
3\times 3x+2\times 2x=3\left(7+3x\right)
Me whakarea ngā taha e rua o te whārite ki te 6, arā, te tauraro pātahi he tino iti rawa te kitea o 2,3.
9x+2\times 2x=3\left(7+3x\right)
Whakareatia te 3 ki te 3, ka 9.
9x+4x=3\left(7+3x\right)
Whakareatia te 2 ki te 2, ka 4.
13x=3\left(7+3x\right)
Pahekotia te 9x me 4x, ka 13x.
13x=21+9x
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te 7+3x.
13x-9x=21
Tangohia te 9x mai i ngā taha e rua.
4x=21
Pahekotia te 13x me -9x, ka 4x.
x=\frac{21}{4}
Whakawehea ngā taha e rua ki te 4.
Ngā Tauira
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whārite Simultaneous
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Whakarerekētanga
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Whakaurunga
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