Răspuns :

Madalin01vaicarid

Răspuns:

x+y=2

Explicație pas cu pas:

17-{25-[18-16*(x + y):4:2]:7*2-5}:8*3 = 11

{25-[18-16*(x + y):4:2]:7*2-5}:8*3=17-11=6

{25-[18-16*(x + y):4:2]:7*2-5}:8=6/3=2

25-[18-16*(x + y):4:2]:7*2-5=2*8=16

25-[18-16*(x + y):4:2]:7*2=16+5

25-[18-16*(x + y):4:2]:7*2=21

[18-16*(x + y):4:2]:7*2=25-21

[18-16*(x + y):4:2]:7*2=4

[18-16*(x + y):4:2]:7=4/2

[18-16*(x + y):4:2]:7=2

18-16*(x + y):4:2=2*7

18-16*(x + y):4:2=14

16*(x + y):4:2=18-14

16*(x + y):4:2=4

16*(x + y):4=4*2

16*(x + y):4=8

16*(x + y)=4*8

16*(x + y)=32

x+y=32/16

x+y=2

Răspuns:

x + y = 2

Explicație pas cu pas:

Salutare!

17- {25 - [18 - 16•(x + y) : 4 : 2]:7•2 - 5}:8•3 = 11

17 = 11 + {25 - [18 - 16•(x + y):4:2]:7•2 - 5}:8•3

17 - 11 = {25 - [18 - 16•(x + y):4:2]:7•2 - 5}:8•3

6 = {25 - [18 - 16•(x + y):4:2]:7•2 - 5}:8•3 |:3

2 = {25 - [18 - 16•(x + y):4:2]:7•2 - 5}:8 |•8

16 = 25 - [18 - 16 • (x + y) : 4 : 2] : 7 • 2 - 5

16 + 5 = 25 - [18 - 16 • (x + y) : 4 : 2] : 7 • 2

21 + [18 - 16 • (x + y) : 4 : 2] : 7 • 2 = 25

[18 - 16 • (x + y) : 4 : 2] : 7 • 2 = 25 - 21

[18 - 4 • (x + y) : 2] : 7 • 2 = 4 |:2

[18 - 2 • (x + y)] : 7 = 2 |•7

18 - 2 • (x + y) = 14

18 = 14 + 2 • (x + y)

18 - 14 = 2 • (x + y)

4 = 2 • (x + y) |:2

2 = (x + y)

x + y = 2

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