Issolvi .01*90+0.9*x=.07(90+x)

$$.01 \times 90+0.9 \times x=.07(90+x)$$

Solvi għal x

$$x = \frac{540}{83} = 6\frac{42}{83} \approx 6.506024096$$

Passi biex Issolvi l-Ekwazzjoni Lineari

Immultiplika 0.01 u 90 biex tikseb 0.9.

$$0.9+0.9x=0.07\left(90+x\right)$$

Uża l-propjetà distributtiva biex timmultiplika 0.07 b'90+x.

$$0.9+0.9x=6.3+0.07x$$

Naqqas 0.07x miż-żewġ naħat.

$$0.9+0.9x-0.07x=6.3$$

Ikkombina 0.9x u -0.07x biex tikseb 0.83x.

$$0.9+0.83x=6.3$$

Naqqas 0.9 miż-żewġ naħat.

$$0.83x=6.3-0.9$$

Naqqas 0.9 minn 6.3 biex tikseb 5.4.

$$0.83x=5.4$$

Iddividi ż-żewġ naħat b'0.83.

$$x=\frac{5.4}{0.83}$$

Espandi \frac{5.4}{0.83} billi timmultiplika kemm in-numeratur kif ukoll id-denominatur b'100.

$$x=\frac{540}{83}$$