Question

aflati-l pe a din 2+2x{2+2[2+2(2-2:a)]}=22

Answer 1

2+2×{2+2[2+2(2-2÷a)]}=22

2×{2+2[2+2(2-2÷a)]}= 20

2+2[2+2(2-2÷a)]= 10

2[2+2(2-2÷a)]=8

2+2(2-2÷a)=4

2(2-2÷a)=2

2-2÷a=1

2÷a=1

a=2

Answer 2

2+2*[2+2(2+4-4+2a)]=22

2+2*(2+8a)=22

2+4+16a=22

6+16a=22 |-6

16a=16 |÷16

a=1