Whakaoti mō x
x=-100
Graph
Tohaina
Kua tāruatia ki te papatopenga
3x-100+8x=9x-300
Whakamahia te āhuatanga tohatoha hei whakarea te -4 ki te 25-2x.
11x-100=9x-300
Pahekotia te 3x me 8x, ka 11x.
11x-100-9x=-300
Tangohia te 9x mai i ngā taha e rua.
2x-100=-300
Pahekotia te 11x me -9x, ka 2x.
2x=-300+100
Me tāpiri te 100 ki ngā taha e rua.
2x=-200
Tāpirihia te -300 ki te 100, ka -200.
x=\frac{-200}{2}
Whakawehea ngā taha e rua ki te 2.
x=-100
Whakawehea te -200 ki te 2, kia riro ko -100.
Ngā Tauira
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Arithmetic
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Poukapa
\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]
whārite Simultaneous
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Whakarerekētanga
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Whakaurunga
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Ngā Tepe
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