Issolvi 128.15=(3.20*22)+(1.50*(22-x))+(3.20*x)

$$128.15=(3.20 \times 22)+(1.50 \times (22-x))+(3.20 \times x)$$

Solvi għal x

$$x = \frac{495}{34} = 14\frac{19}{34} \approx 14.558823529$$

Passi biex Issolvi l-Ekwazzjoni Lineari

Immultiplika 3.2 u 22 biex tikseb 70.4.

$$128.15=70.4+1.5\left(22-x\right)+3.2x$$

Uża l-propjetà distributtiva biex timmultiplika 1.5 b'22-x.

$$128.15=70.4+33-1.5x+3.2x$$

Żid 70.4 u 33 biex tikseb 103.4.

$$128.15=103.4-1.5x+3.2x$$

Ikkombina -1.5x u 3.2x biex tikseb 1.7x.

$$128.15=103.4+1.7x$$

Ibdel in-naħat sabiex it-termini varjabbli kollha jkunu fuq in-naħa tax-xellug.

$$103.4+1.7x=128.15$$

Naqqas 103.4 miż-żewġ naħat.

$$1.7x=128.15-103.4$$

Naqqas 103.4 minn 128.15 biex tikseb 24.75.

$$1.7x=24.75$$

Iddividi ż-żewġ naħat b'1.7.

$$x=\frac{24.75}{1.7}$$

Espandi \frac{24.75}{1.7} billi timmultiplika kemm in-numeratur kif ukoll id-denominatur b'100.

$$x=\frac{2475}{170}$$

Naqqas il-frazzjoni \frac{2475}{170} għat-termini l-aktar baxxi billi testratta u tikkanċella barra 5.

$$x=\frac{495}{34}$$