Whakaoti mō x
x=\frac{3y}{8}+1000
Graph
Tohaina
Kua tāruatia ki te papatopenga
0.8x=800+0.3y
Me tāpiri te 0.3y ki ngā taha e rua.
0.8x=\frac{3y}{10}+800
He hanga arowhānui tō te whārite.
\frac{0.8x}{0.8}=\frac{\frac{3y}{10}+800}{0.8}
Whakawehea ngā taha e rua o te whārite ki te 0.8, he ōrite ki te whakarea i ngā taha e rua ki te tau huripoki o te hautanga.
x=\frac{\frac{3y}{10}+800}{0.8}
Mā te whakawehe ki te 0.8 ka wetekia te whakareanga ki te 0.8.
x=\frac{3y}{8}+1000
Whakawehe 800+\frac{3y}{10} ki te 0.8 mā te whakarea 800+\frac{3y}{10} ki te tau huripoki o 0.8.
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