Issolvi 90-x=2/5(180-x)

$$90 - x = \frac { 2 } { 5 } ( 180 - x )$$

Solvi għal x

$$x=30$$

Passi biex Issolvi l-Ekwazzjoni Lineari

Uża l-propjetà distributtiva biex timmultiplika \frac{2}{5} b'180-x.

$$90-x=\frac{2}{5}\times 180+\frac{2}{5}\left(-1\right)x$$

Esprimi \frac{2}{5}\times 180 bħala frazzjoni waħda.

$$90-x=\frac{2\times 180}{5}+\frac{2}{5}\left(-1\right)x$$

Immultiplika 2 u 180 biex tikseb 360.

$$90-x=\frac{360}{5}+\frac{2}{5}\left(-1\right)x$$

Iddividi 360 b'5 biex tikseb72.

$$90-x=72+\frac{2}{5}\left(-1\right)x$$

Immultiplika \frac{2}{5} u -1 biex tikseb -\frac{2}{5}.

$$90-x=72-\frac{2}{5}x$$

Żid \frac{2}{5}x maż-żewġ naħat.

$$90-x+\frac{2}{5}x=72$$

Ikkombina -x u \frac{2}{5}x biex tikseb -\frac{3}{5}x.

$$90-\frac{3}{5}x=72$$

Naqqas 90 miż-żewġ naħat.

$$-\frac{3}{5}x=72-90$$

Naqqas 90 minn 72 biex tikseb -18.

$$-\frac{3}{5}x=-18$$

Immultiplika ż-żewġ naħat b'-\frac{5}{3}, ir-reċiproku ta' -\frac{3}{5}.

$$x=-18\left(-\frac{5}{3}\right)$$

Esprimi -18\left(-\frac{5}{3}\right) bħala frazzjoni waħda.

$$x=\frac{-18\left(-5\right)}{3}$$

Immultiplika -18 u -5 biex tikseb 90.

$$x=\frac{90}{3}$$

Iddividi 90 b'3 biex tikseb30.

$$x=30$$