Question

Determinați termenul necunoscut 5+3*{35-2*[4*a-(35:5-2*3)]+2}:5=14 ​

Answer 1

Explicație pas cu pas:

$5 + 3 \times \{35 - 2 \times [4 \times a - (35 \div 5 - 2 \times 3)] + 2 \} \div 5 = 14$

$3 \times \{35 - 2 \times [4 \times a - (7 - 6)] + 2 \} \div 5 = 14 - 5$

$3 \times [35 - 2 \times (4 \times a - 1) + 2] \div 5 = 9$

$3 \times [35 - 2 \times (4 \times a - 1) + 2] = 9 \times 5$

$35 - 2 \times (4 \times a - 1) + 2 = 45 \div 3$

$2 \times (4 \times a - 1) = 37 - 15$

$2 \times (4 \times a - 1) = 22$

$4 \times a - 1 = 22 \div 2$

$4 \times a = 11 + 1$

$4 \times a = 12$

$a = 12 \div 4$

$a = 3$