Whakaoti mō x
x=450y+175
Whakaoti mō y
y=\frac{x-175}{450}
Graph
Tohaina
Kua tāruatia ki te papatopenga
0.04x=7+18y
Me tāpiri te 18y ki ngā taha e rua.
0.04x=18y+7
He hanga arowhānui tō te whārite.
\frac{0.04x}{0.04}=\frac{18y+7}{0.04}
Me whakarea ngā taha e rua ki te 25.
x=\frac{18y+7}{0.04}
Mā te whakawehe ki te 0.04 ka wetekia te whakareanga ki te 0.04.
x=450y+175
Whakawehe 7+18y ki te 0.04 mā te whakarea 7+18y ki te tau huripoki o 0.04.
-18y=7-0.04x
Tangohia te 0.04x mai i ngā taha e rua.
-18y=-\frac{x}{25}+7
He hanga arowhānui tō te whārite.
\frac{-18y}{-18}=\frac{-\frac{x}{25}+7}{-18}
Whakawehea ngā taha e rua ki te -18.
y=\frac{-\frac{x}{25}+7}{-18}
Mā te whakawehe ki te -18 ka wetekia te whakareanga ki te -18.
y=\frac{x}{450}-\frac{7}{18}
Whakawehe 7-\frac{x}{25} ki te -18.
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