30+5×{32÷8+5×[40-8×(200÷5-72-x)]}=250
Răspunsuri la întrebare
Răspuns:
30+5×{32÷8+5×[40-8×(200÷5-72-x)]}=250
5×{32÷8+5×[40-8×(200÷5-72-x)]}=250-30
5×{32÷8+5×[40-8×(200÷5-72-x)]}=220
32÷8+5×[40-8×(200÷5-72-x)] = 220:5
32÷8+5×[40-8×(200÷5-72-x)] = 44
4+5×[40-8×(200÷5-72-x)] = 44
5×[40-8×(200÷5-72-x)] = 44-4
5×[40-8×(200÷5-72-x)] = 40
40-8×(200÷5-72-x) =40:5
8×(200÷5-72-x) =8
200÷5-72-x =8 : 8
40 - 72-x = 1
-32 - x = 1
x = -32 - 1
x = - 33
In cazul cand ai 72 : x =>
30+5×{32÷8+5×[40-8×(200÷5-72:x)]}=250
5×{32÷8+5×[40-8×(200÷5-72:x)]}=250-30
5×{32÷8+5×[40-8×(200÷5-72:x)]}=220
32÷8+5×[40-8×(200÷5-7:x)] = 220:5
32÷8+5×[40-8×(200÷5-72:x)] = 44
4+5×[40-8×(200÷5-72:x)] = 44
5×[40-8×(200÷5-72:x)] = 44-4
5×[40-8×(200÷5-72:x)] = 40
40-8×(200÷5-72:x) =40:5
8×(200÷5-72:x) =8
200÷5-72:x =8 : 8
40 - 72:x = 1
72: x = 40 - 1
72 : x = 39
x = 72/39