Whakaoti mō x
x = -\frac{20}{3} = -6\frac{2}{3} \approx -6.666666667
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x+16=x-4
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x+4.
4x+16-x=-4
Tangohia te x mai i ngā taha e rua.
3x+16=-4
Pahekotia te 4x me -x, ka 3x.
3x=-4-16
Tangohia te 16 mai i ngā taha e rua.
3x=-20
Tangohia te 16 i te -4, ka -20.
x=\frac{-20}{3}
Whakawehea ngā taha e rua ki te 3.
x=-\frac{20}{3}
Ka taea te hautanga \frac{-20}{3} te tuhi anō ko -\frac{20}{3} mā te tango i te tohu tōraro.
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