Whakaoti mō x
x = -\frac{67}{61} = -1\frac{6}{61} \approx -1.098360656
Graph
Tohaina
Kua tāruatia ki te papatopenga
3\times 4\left(3x+6\right)+45=5\times 2\left(2x+5\right)-45x
Me whakarea ngā taha e rua o te whārite ki te 15, arā, te tauraro pātahi he tino iti rawa te kitea o 5,3.
12\left(3x+6\right)+45=5\times 2\left(2x+5\right)-45x
Whakareatia te 3 ki te 4, ka 12.
36x+72+45=5\times 2\left(2x+5\right)-45x
Whakamahia te āhuatanga tohatoha hei whakarea te 12 ki te 3x+6.
36x+117=5\times 2\left(2x+5\right)-45x
Tāpirihia te 72 ki te 45, ka 117.
36x+117=10\left(2x+5\right)-45x
Whakareatia te 5 ki te 2, ka 10.
36x+117=20x+50-45x
Whakamahia te āhuatanga tohatoha hei whakarea te 10 ki te 2x+5.
36x+117=-25x+50
Pahekotia te 20x me -45x, ka -25x.
36x+117+25x=50
Me tāpiri te 25x ki ngā taha e rua.
61x+117=50
Pahekotia te 36x me 25x, ka 61x.
61x=50-117
Tangohia te 117 mai i ngā taha e rua.
61x=-67
Tangohia te 117 i te 50, ka -67.
x=\frac{-67}{61}
Whakawehea ngā taha e rua ki te 61.
x=-\frac{67}{61}
Ka taea te hautanga \frac{-67}{61} te tuhi anō ko -\frac{67}{61} mā te tango i te tohu tōraro.
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