Whakaoti mō x
x=6
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x+1-7x=-11
Tangohia te 7x mai i ngā taha e rua.
-2x+1=-11
Pahekotia te 5x me -7x, ka -2x.
-2x=-11-1
Tangohia te 1 mai i ngā taha e rua.
-2x=-12
Tangohia te 1 i te -11, ka -12.
x=\frac{-12}{-2}
Whakawehea ngā taha e rua ki te -2.
x=6
Whakawehea te -12 ki te -2, kia riro ko 6.
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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