Whakaoti mō x
x>-\frac{31}{4}
Graph
Tohaina
Kua tāruatia ki te papatopenga
4\left(x+6\right)>7\left(-1\right)
Me whakarea ngā taha e rua o te whārite ki te 28, arā, te tauraro pātahi he tino iti rawa te kitea o 7,4. I te mea he tōrunga te 28, kāore e huri te ahunga koreōrite.
4x+24>7\left(-1\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x+6.
4x+24>-7
Whakareatia te 7 ki te -1, ka -7.
4x>-7-24
Tangohia te 24 mai i ngā taha e rua.
4x>-31
Tangohia te 24 i te -7, ka -31.
x>-\frac{31}{4}
Whakawehea ngā taha e rua ki te 4. I te mea he tōrunga te 4, kāore e huri te ahunga koreōrite.
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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