Question

Reconstituiti adunarea vara+ara+ra+a=5864​

Answer 1

Răspuns:

$abcd+bcd+cd+d=5864$

$abcd+cd+d=5864-bcd$

$abcd+d=5864-bcd-cd$

$abcd=5864-bcd-cd-d$

$abcd=-bcd-cd-d+5864$

$bcda=5864-d-cd-bcd$

$\frac{bcda}{bcd}=\frac{5864-d-cd-bcd}{bcd}$

$a=\frac{5864-d-cd-bcd}{bcd}$

Răspuns a)

$\left\{\begin{matrix}a=-\frac{bcd+cd+d-5864}{bcd}\text{, }&d\neq 0\text{ and }c\neq 0\text{ and }b\neq 0\\a\in \mathrm{R}\text{, }&\left(d=5864\text{ and }c=0\right)\text{ or }\left(d=\frac{5864}{c+1}\text{ and }b=0\text{ and }c\neq 0\text{ and }c\neq -1\right)\end{matrix}\right.$

$abcd+bcd+cd+d=5864$

$abcd+bcd+d=5864-cd$

$abcd+bcd=5864-cd-d$

$\left(acd+cd\right)b=5864-cd-d$

$\left(acd+cd\right)b=5864-d-cd$

$\frac{\left(acd+cd\right)b}{acd+cd}=\frac{5864-d-cd}{acd+cd}$

$b=\frac{5864-d-cd}{acd+cd}$

$b=\frac{5864-d-cd}{cd\left(a+1\right)}$

Răspuns b)

$\left\{\begin{matrix}b=-\frac{cd+d-5864}{cd\left(a+1\right)}\text{, }&a\neq -1\text{ and }d\neq 0\text{ and }c\neq 0\\b\in \mathrm{R}\text{, }&\left(c=-1+\frac{5864}{d}\text{ and }d\neq 0\text{ and }a=-1\right)\text{ or }\left(c=0\text{ and }a\neq -1\text{ and }d=5864\right)\end{matrix}\right.$

Explicație pas cu pas:

Salut, am folosit abcd pentru a fii mai ușor de înțeles.

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