Whakaoti mō x
x=-3
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Tohaina
Kua tāruatia ki te papatopenga
6\left(x+3\right)+3x+2\left(2x+5\right)=3\left(x+1\right)-5
Me whakarea ngā taha e rua o te whārite ki te 12, arā, te tauraro pātahi he tino iti rawa te kitea o 2,4,6,12.
6x+18+3x+2\left(2x+5\right)=3\left(x+1\right)-5
Whakamahia te āhuatanga tohatoha hei whakarea te 6 ki te x+3.
9x+18+2\left(2x+5\right)=3\left(x+1\right)-5
Pahekotia te 6x me 3x, ka 9x.
9x+18+4x+10=3\left(x+1\right)-5
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 2x+5.
13x+18+10=3\left(x+1\right)-5
Pahekotia te 9x me 4x, ka 13x.
13x+28=3\left(x+1\right)-5
Tāpirihia te 18 ki te 10, ka 28.
13x+28=3x+3-5
Whakamahia te āhuatanga tohatoha hei whakarea te 3 ki te x+1.
13x+28=3x-2
Tangohia te 5 i te 3, ka -2.
13x+28-3x=-2
Tangohia te 3x mai i ngā taha e rua.
10x+28=-2
Pahekotia te 13x me -3x, ka 10x.
10x=-2-28
Tangohia te 28 mai i ngā taha e rua.
10x=-30
Tangohia te 28 i te -2, ka -30.
x=\frac{-30}{10}
Whakawehea ngā taha e rua ki te 10.
x=-3
Whakawehea te -30 ki te 10, kia riro ko -3.
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