Question

Afla numarul necunoscut x din egalitatea

15-{3+[64-2x(29-32:x)]:7}=10

Answer 1

15-{3+[64-2x(29-32:x)]:7}=10

{3+[64-2*(29-32:x)]:7}=15-10

3+[64-2*(29-32:x)]:7=5

[64-2*(29-32:x)]:7=5-3


[64-2*(29-32:x)]:7=2


64-2*(29-32:x)=2*7


64-2*(29-32:x)=14


2x(29-32:x)64-14

2x(29-32:x)=50


29-32:x=50:2


29-32:x=25

32:x=29-25

32:x=4

x=32:4

x=8