Question

{2×[14+(5+a):6]-5}:9+7=10
multumesc

Answer 1

{2x[14+(5+a):6]-5}:9+7 = 10

{2x[14+(5+a):6]-5}:9 = 10-7 = 3

2x[14+(5+a):6]-5 = 3x9 = 27

2x[14+(5+a):6]=27+5 = 32

14+(5+a):6 = 32:2 = 16

(5+a):6 = 16-14 = 2

5+a = 2x6 = 12

a = 12-5 = 7