Whakaoti mō x
x = -\frac{7}{2} = -3\frac{1}{2} = -3.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
x-2x-2-x-2=3
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te x+1.
-x-2-x-2=3
Pahekotia te x me -2x, ka -x.
-2x-2-2=3
Pahekotia te -x me -x, ka -2x.
-2x-4=3
Tangohia te 2 i te -2, ka -4.
-2x=3+4
Me tāpiri te 4 ki ngā taha e rua.
-2x=7
Tāpirihia te 3 ki te 4, ka 7.
x=\frac{7}{-2}
Whakawehea ngā taha e rua ki te -2.
x=-\frac{7}{2}
Ka taea te hautanga \frac{7}{-2} te tuhi anō ko -\frac{7}{2} mā te tango i te tohu tōraro.
Ngā Tauira
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