Question

Afla dublul lui ,, n '' marit cu 1259 daca : 1488-7:[6-5x(32:8-4:n)+1]-6-1288=193

Answer 1

Răspuns:  1261

Explicație pas cu pas:

Salutare!

$\bf 1488-7:[6-5\cdot(32:8-4:n)+ 1]-6 -1288=193$

$\bf 1488-7:[6-5\cdot(4-4:n)+ 1]-6 -1288=193$

$\bf 1488-7:[6-5\cdot(4-4:n)+ 1]=193 +6 + 1288$

$\bf 1488-7:[6-5\cdot(4-4:n)+ 1]=1487$

$\bf 1488-1487 = 7:[6-5\cdot(4-4:n)+ 1]$

$\bf 1 = 7:[6-5\cdot(4-4:n)+ 1]$

$\bf [6-5\cdot(4-4:n)+ 1] = 7$

$\bf 6-5\cdot(4-4:n)+ 1 = 7$

$\bf 7 -5\cdot(4-4:n) = 7$

$\bf 7= 7 + 5\cdot(4-4:n)$

$\bf 7= 7 + 20- 20:n$

$\bf 7= 27- 20:n$

$\bf 7 + 20 : n = 27$

$\bf 20 : n = 27 - 7$

$\bf 20 : n = 20$

$\bf 20 = 20n~~\bigg|:20\implies\boxed{\boxed{\bf n = 1}}$

dublul lui n este 2 × 1 = 2

1259 + 2 = 1261

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