Whakaoti mō x
x = -\frac{21}{4} = -5\frac{1}{4} = -5.25
Graph
Tohaina
Kua tāruatia ki te papatopenga
x-\frac{1}{4}-\frac{2}{3}x=-2
Tangohia te \frac{2}{3}x mai i ngā taha e rua.
\frac{1}{3}x-\frac{1}{4}=-2
Pahekotia te x me -\frac{2}{3}x, ka \frac{1}{3}x.
\frac{1}{3}x=-2+\frac{1}{4}
Me tāpiri te \frac{1}{4} ki ngā taha e rua.
\frac{1}{3}x=-\frac{8}{4}+\frac{1}{4}
Me tahuri te -2 ki te hautau -\frac{8}{4}.
\frac{1}{3}x=\frac{-8+1}{4}
Tā te mea he rite te tauraro o -\frac{8}{4} me \frac{1}{4}, me tāpiri rāua mā te tāpiri i ō raua taurunga.
\frac{1}{3}x=-\frac{7}{4}
Tāpirihia te -8 ki te 1, ka -7.
x=-\frac{7}{4}\times 3
Me whakarea ngā taha e rua ki te 3, te tau utu o \frac{1}{3}.
x=\frac{-7\times 3}{4}
Tuhia te -\frac{7}{4}\times 3 hei hautanga kotahi.
x=\frac{-21}{4}
Whakareatia te -7 ki te 3, ka -21.
x=-\frac{21}{4}
Ka taea te hautanga \frac{-21}{4} te tuhi anō ko -\frac{21}{4} mā te tango i te tohu tōraro.
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