Whakaoti i te (x*85/100)+x=

$$( \frac{ x \times 85 }{ 100 } )+x=$$

Aromātai

$$\frac{37x}{20}$$

Ngā Upane Otinga

Whakawehea te x\times 85 ki te 100, kia riro ko x\times \frac{17}{20}.

$$x\times \frac{17}{20}+x$$

Pahekotia te x\times \frac{17}{20} me x, ka \frac{37}{20}x.

$$\frac{37}{20}x$$

Kimi Pārōnaki e ai ki x

$$\frac{37}{20} = 1\frac{17}{20} = 1.85$$

Ngā Upane e Whakamahi ana i te Tautuhinga o te Pārōnaki

Whakawehea te x\times 85 ki te 100, kia riro ko x\times \frac{17}{20}.

$$\frac{\mathrm{d}}{\mathrm{d}x}(x\times \frac{17}{20}+x)$$

Pahekotia te x\times \frac{17}{20} me x, ka \frac{37}{20}x.

$$\frac{\mathrm{d}}{\mathrm{d}x}(\frac{37}{20}x)$$

Ko te pārōnaki o ax^{n} ko nax^{n-1}.

$$\frac{37}{20}x^{1-1}$$

Tango 1 mai i 1.

$$\frac{37}{20}x^{0}$$

Mō tētahi kupu t mahue te 0, t^{0}=1.

$$\frac{37}{20}\times 1$$

Mō tētahi kupu t, t\times 1=t me 1t=t.

$$\frac{37}{20}$$