x - ( 25 \% x ) - ( 408 x ) - ( 10 \% x ) = 45
Whakaoti mō x
x=-\frac{900}{8147}\approx -0.110470112
Graph
Tohaina
Kua tāruatia ki te papatopenga
x-\frac{1}{4}x-408x-\frac{10}{100}x=45
Whakahekea te hautanga \frac{25}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.
\frac{3}{4}x-408x-\frac{10}{100}x=45
Pahekotia te x me -\frac{1}{4}x, ka \frac{3}{4}x.
-\frac{1629}{4}x-\frac{10}{100}x=45
Pahekotia te \frac{3}{4}x me -408x, ka -\frac{1629}{4}x.
-\frac{1629}{4}x-\frac{1}{10}x=45
Whakahekea te hautanga \frac{10}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 10.
-\frac{8147}{20}x=45
Pahekotia te -\frac{1629}{4}x me -\frac{1}{10}x, ka -\frac{8147}{20}x.
x=45\left(-\frac{20}{8147}\right)
Me whakarea ngā taha e rua ki te -\frac{20}{8147}, te tau utu o -\frac{8147}{20}.
x=\frac{45\left(-20\right)}{8147}
Tuhia te 45\left(-\frac{20}{8147}\right) hei hautanga kotahi.
x=\frac{-900}{8147}
Whakareatia te 45 ki te -20, ka -900.
x=-\frac{900}{8147}
Ka taea te hautanga \frac{-900}{8147} te tuhi anō ko -\frac{900}{8147} mā te tango i te tohu tōraro.
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