Whakaoti mō x
x=20
Graph
Tohaina
Kua tāruatia ki te papatopenga
12x+48+7x-36+4\left(x-5\right)=452
Whakamahia te āhuatanga tohatoha hei whakarea te 12 ki te x+4.
19x+48-36+4\left(x-5\right)=452
Pahekotia te 12x me 7x, ka 19x.
19x+12+4\left(x-5\right)=452
Tangohia te 36 i te 48, ka 12.
19x+12+4x-20=452
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x-5.
23x+12-20=452
Pahekotia te 19x me 4x, ka 23x.
23x-8=452
Tangohia te 20 i te 12, ka -8.
23x=452+8
Me tāpiri te 8 ki ngā taha e rua.
23x=460
Tāpirihia te 452 ki te 8, ka 460.
x=\frac{460}{23}
Whakawehea ngā taha e rua ki te 23.
x=20
Whakawehea te 460 ki te 23, kia riro ko 20.
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