\frac { 8 - 0.2 d t } { 1 + t } = 1.75 d \theta
Solvi għal d
d=\frac{160}{35t\theta +4t+35\theta }
\left(\theta =-\frac{4}{35}\text{ or }t\neq -\frac{35\theta }{35\theta +4}\right)\text{ and }t\neq -1
Solvi għal t
\left\{\begin{matrix}\\t\neq -1\text{, }&\text{unconditionally}\\t=-\frac{5\left(7d\theta -32\right)}{d\left(35\theta +4\right)}\text{, }&d\neq -40\text{ and }\theta \neq -\frac{4}{35}\text{ and }d\neq 0\end{matrix}\right.
Graff
Sehem
Ikkupjat fuq il-klibbord
8-0.2dt=1.75d\theta \left(t+1\right)
Immultiplika ż-żewġ naħat tal-ekwazzjoni b't+1.
8-0.2dt=1.75d\theta t+1.75d\theta
Uża l-propjetà distributtiva biex timmultiplika 1.75d\theta b't+1.
8-0.2dt-1.75d\theta t=1.75d\theta
Naqqas 1.75d\theta t miż-żewġ naħat.
8-0.2dt-1.75d\theta t-1.75d\theta =0
Naqqas 1.75d\theta miż-żewġ naħat.
-0.2dt-1.75d\theta t-1.75d\theta =-8
Naqqas 8 miż-żewġ naħat. Xi ħaġa mnaqqsa minn żero tagħti numru negattiv.
\left(-0.2t-1.75\theta t-1.75\theta \right)d=-8
Ikkombina t-termini kollha li fihom d.
\left(-\frac{7t\theta }{4}-\frac{t}{5}-\frac{7\theta }{4}\right)d=-8
L-ekwazzjoni hija f'forma standard.
\frac{\left(-\frac{7t\theta }{4}-\frac{t}{5}-\frac{7\theta }{4}\right)d}{-\frac{7t\theta }{4}-\frac{t}{5}-\frac{7\theta }{4}}=-\frac{8}{-\frac{7t\theta }{4}-\frac{t}{5}-\frac{7\theta }{4}}
Iddividi ż-żewġ naħat b'-0.2t-1.75\theta t-1.75\theta .
d=-\frac{8}{-\frac{7t\theta }{4}-\frac{t}{5}-\frac{7\theta }{4}}
Meta tiddividi b'-0.2t-1.75\theta t-1.75\theta titneħħa l-multiplikazzjoni b'-0.2t-1.75\theta t-1.75\theta .
d=\frac{8}{\frac{7t\theta }{4}+\frac{t}{5}+\frac{7\theta }{4}}
Iddividi -8 b'-0.2t-1.75\theta t-1.75\theta .
8-0.2dt=1.75d\theta \left(t+1\right)
Il-varjabbli t ma jistax ikun ugwali għal -1 billi d-diviżjoni b'żero mhux iddefinit. Immultiplika ż-żewġ naħat tal-ekwazzjoni b't+1.
8-0.2dt=1.75d\theta t+1.75d\theta
Uża l-propjetà distributtiva biex timmultiplika 1.75d\theta b't+1.
8-0.2dt-1.75d\theta t=1.75d\theta
Naqqas 1.75d\theta t miż-żewġ naħat.
-0.2dt-1.75d\theta t=1.75d\theta -8
Naqqas 8 miż-żewġ naħat.
\left(-0.2d-1.75d\theta \right)t=1.75d\theta -8
Ikkombina t-termini kollha li fihom t.
\left(-\frac{7d\theta }{4}-\frac{d}{5}\right)t=\frac{7d\theta }{4}-8
L-ekwazzjoni hija f'forma standard.
\frac{\left(-\frac{7d\theta }{4}-\frac{d}{5}\right)t}{-\frac{7d\theta }{4}-\frac{d}{5}}=\frac{\frac{7d\theta }{4}-8}{-\frac{7d\theta }{4}-\frac{d}{5}}
Iddividi ż-żewġ naħat b'-0.2d-1.75d\theta .
t=\frac{\frac{7d\theta }{4}-8}{-\frac{7d\theta }{4}-\frac{d}{5}}
Meta tiddividi b'-0.2d-1.75d\theta titneħħa l-multiplikazzjoni b'-0.2d-1.75d\theta .
t=\frac{7d\theta -32}{-4d\left(\frac{7\theta }{4}+0.2\right)}
Iddividi \frac{7d\theta }{4}-8 b'-0.2d-1.75d\theta .
t=\frac{7d\theta -32}{-4d\left(\frac{7\theta }{4}+0.2\right)}\text{, }t\neq -1
Il-varjabbi t ma jistax ikun ugwali għal -1.
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