Whakaoti mō P
P=10
Tohaina
Kua tāruatia ki te papatopenga
10P-3=24+8P-7
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 12+4P.
10P-3=17+8P
Tangohia te 7 i te 24, ka 17.
10P-3-8P=17
Tangohia te 8P mai i ngā taha e rua.
2P-3=17
Pahekotia te 10P me -8P, ka 2P.
2P=17+3
Me tāpiri te 3 ki ngā taha e rua.
2P=20
Tāpirihia te 17 ki te 3, ka 20.
P=\frac{20}{2}
Whakawehea ngā taha e rua ki te 2.
P=10
Whakawehea te 20 ki te 2, kia riro ko 10.
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