Question

(29-x)*2-7=45 помогите

Answer 1

(29 - x)*2 - 7 = 45
2(29 - x) = 45 + 7 
58 - 2x = 52 
- 2x = - 6
x = 3 

Answer 2

(29-х)*2=45+7
(29-х)*2=52
29-х=52/2
29-х=26
-х=26-29
х=3