Whakaoti mō x
x = \frac{79}{2} = 39\frac{1}{2} = 39.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
42=2x-\left(18\times 2+1\right)
Whakareatia ngā taha e rua o te whārite ki te 2.
42=2x-\left(36+1\right)
Whakareatia te 18 ki te 2, ka 36.
42=2x-37
Tāpirihia te 36 ki te 1, ka 37.
2x-37=42
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
2x=42+37
Me tāpiri te 37 ki ngā taha e rua.
2x=79
Tāpirihia te 42 ki te 37, ka 79.
x=\frac{79}{2}
Whakawehea ngā taha e rua ki te 2.
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