Question

afla x din egaliattea 200-{100-2*[58+(30-18:X)]:4}=141

Answer 1

200-{100-2*[58+(30-18:X)]:4}=141
100-2*[58+(30-18:X)]:4=200-141
100-2*[58+(30-18:X)]:4=59
2*[58+(30-18:X)]:4=100-59
2*[58+(30-18:X)]:4=41
2*[58+(30-18:X)]=41×4
2*[58+(30-18:X)]=164
58+(30-18:X)=164:2
58+(30-18:X)=82
30-18:X=82-58
30-18:X=24
18:X=30-24
18:X=6
X=18:6
X=3

Answer 2

200-{100-2*[58+(30-18:X)]:4}=141

{100-2*[58+(30-18:X)]:4} notam a

200-a=141 deci a = 59

100-2*[58+(30-18:X)]:4 = 59

100-b=59 deci b=41

2*[58+(30-18:X)]:4 =41

2*[58+(30-18:X)] = 4 x 41

2*[58+(30-18:X)]=164

58+(30-18:X) =164:2=82

30-18:X = 82-58 =24

30-24=18:X

6=18:X

X = 3