Whakaoti mō x
x=5
Graph
Tohaina
Kua tāruatia ki te papatopenga
-2\left(-x\right)-10+5x+2=27
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te -x+5.
2x-10+5x+2=27
Whakareatia te -2 ki te -1, ka 2.
7x-10+2=27
Pahekotia te 2x me 5x, ka 7x.
7x-8=27
Tāpirihia te -10 ki te 2, ka -8.
7x=27+8
Me tāpiri te 8 ki ngā taha e rua.
7x=35
Tāpirihia te 27 ki te 8, ka 35.
x=\frac{35}{7}
Whakawehea ngā taha e rua ki te 7.
x=5
Whakawehea te 35 ki te 7, kia riro ko 5.
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