Whakaoti mō x
x=-1
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x+1=4x+3
Pahekotia te 5x me -x, ka 4x.
2x+1-4x=3
Tangohia te 4x mai i ngā taha e rua.
-2x+1=3
Pahekotia te 2x me -4x, ka -2x.
-2x=3-1
Tangohia te 1 mai i ngā taha e rua.
-2x=2
Tangohia te 1 i te 3, ka 2.
x=\frac{2}{-2}
Whakawehea ngā taha e rua ki te -2.
x=-1
Whakawehea te 2 ki te -2, kia riro ko -1.
Ngā Tauira
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
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