[(4 : x + 28).3+55]:5=35
(4:x+28).3+55=35.5=175
(4:x+28).3=175-55=120
4:x+28=120:3=40
4:x=40-28=16
x=4:16
=>x=0,25
=> (4:x+28).3+55=35.5
=> (4:x+28).3=175-55
=> 4:x+28=120:3
=> 4:x=40-28
=> 4:x=12
=> x=4:12
=> x=\(\frac{1}{3}\)
[(4:X+28).3+55]:5=35
[(4:x+28).3+55] =35.5
[(4:x+28).3+55] =175
[(4:x+28).3] =175-55
[(4:x+28).3] =120
(4:x+28) =120:3
4:x+28 =40
4:x =40-28
4:x =12
x=4:12
x=1/3
[( 4 : x + 28) . 3 + 55 ] :5 =35
[( 4 : x + 28) .3 + 55 ] =35 . 5
( 4 : x + 28 ) . 3 + 55 = 175
(4 . x + 28 ) . 3 = 175 - 55
(4 . x + 28) . 3 = 120
4 .x + 28 = 120 :3
4. x + 28 = 40
4 .x = 40 - 28
4 .x = 12
x = 12 : 4
x = 3
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