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4x-\left(6x^{2}-x-15\right)=49-\left(6x-1\right)\left(x-2\right)
Whakamahia te āhuatanga tuaritanga hei whakarea te 2x+3 ki te 3x-5 ka whakakotahi i ngā kupu rite.
4x-6x^{2}+x+15=49-\left(6x-1\right)\left(x-2\right)
Hei kimi i te tauaro o 6x^{2}-x-15, kimihia te tauaro o ia taurangi.
5x-6x^{2}+15=49-\left(6x-1\right)\left(x-2\right)
Pahekotia te 4x me x, ka 5x.
5x-6x^{2}+15=49-\left(6x^{2}-13x+2\right)
Whakamahia te āhuatanga tuaritanga hei whakarea te 6x-1 ki te x-2 ka whakakotahi i ngā kupu rite.
5x-6x^{2}+15=49-6x^{2}+13x-2
Hei kimi i te tauaro o 6x^{2}-13x+2, kimihia te tauaro o ia taurangi.
5x-6x^{2}+15=47-6x^{2}+13x
Tangohia te 2 i te 49, ka 47.
5x-6x^{2}+15+6x^{2}=47+13x
Me tāpiri te 6x^{2} ki ngā taha e rua.
5x+15=47+13x
Pahekotia te -6x^{2} me 6x^{2}, ka 0.
5x+15-13x=47
Tangohia te 13x mai i ngā taha e rua.
-8x+15=47
Pahekotia te 5x me -13x, ka -8x.
-8x=47-15
Tangohia te 15 mai i ngā taha e rua.
-8x=32
Tangohia te 15 i te 47, ka 32.
x=\frac{32}{-8}
Whakawehea ngā taha e rua ki te -8.
x=-4
Whakawehea te 32 ki te -8, kia riro ko -4.