Whakaoti mō x
x=7
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x+20+2\left(x-1\right)=60
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te x+5.
4x+20+2x-2=60
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x-1.
6x+20-2=60
Pahekotia te 4x me 2x, ka 6x.
6x+18=60
Tangohia te 2 i te 20, ka 18.
6x=60-18
Tangohia te 18 mai i ngā taha e rua.
6x=42
Tangohia te 18 i te 60, ka 42.
x=\frac{42}{6}
Whakawehea ngā taha e rua ki te 6.
x=7
Whakawehea te 42 ki te 6, kia riro ko 7.
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