Whakaoti mō x
x=\frac{31}{40}=0.775
Graph
Tohaina
Kua tāruatia ki te papatopenga
40x+25=8\left(1\times 5+2\right)
Me whakarea ngā taha e rua o te whārite ki te 40, arā, te tauraro pātahi he tino iti rawa te kitea o 8,5.
40x+25=8\left(5+2\right)
Whakareatia te 1 ki te 5, ka 5.
40x+25=8\times 7
Tāpirihia te 5 ki te 2, ka 7.
40x+25=56
Whakareatia te 8 ki te 7, ka 56.
40x=56-25
Tangohia te 25 mai i ngā taha e rua.
40x=31
Tangohia te 25 i te 56, ka 31.
x=\frac{31}{40}
Whakawehea ngā taha e rua ki te 40.
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