Whakaoti mō x
x = -\frac{56}{9} = -6\frac{2}{9} \approx -6.222222222
Graph
Tohaina
Kua tāruatia ki te papatopenga
7x-4\times 4x=56
Me whakarea ngā taha e rua o te whārite ki te 28, arā, te tauraro pātahi he tino iti rawa te kitea o 4,7.
7x-16x=56
Whakareatia te -4 ki te 4, ka -16.
-9x=56
Pahekotia te 7x me -16x, ka -9x.
x=\frac{56}{-9}
Whakawehea ngā taha e rua ki te -9.
x=-\frac{56}{9}
Ka taea te hautanga \frac{56}{-9} te tuhi anō ko -\frac{56}{9} mā te tango i te tohu tōraro.
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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Ngā Tepe
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