Question

(305-((45+х)-32))+96=223 х=?

38+(69-у)+74=172 у=?


209-((145+х)-12)+96=123 х=?

18+(159-у)+34=72 у=?

Answer 1

(305-((45+x)-32))+96=223
(305-(x+13))+96=223
305-x-13+96=223
388-x=223
x=388-223
x=165

38+(69-y)+74=172
38+69-y+74=172
107-y+74=172
181-y=172
y=181-172
y=9


209-((145+x)-12)+96=123
209-(145+x-12)+96=123
209-(x+133)+96=123
209-x-133+96=123
172-x=123
x=172-123
x=49
    

18+(159-y)+34=72
18+159-y+34=72
211-y=72
y=211-72
y=139

Answer 2

(305 - ((45 + х) - 32)) + 96 = 223
305 - (45 + х - 32 ) = 223 - 96
305 - (45 + х- 32) = 127
45 + х - 32 = 305 - 127
13 + х = 178
х = 178 - 13 
х = 165
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38 + (69 - у) + 74 = 172
69 - у = 172 - 74 - 38
69 - у = 60
у = 69 - 60
у = 9
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209 - ((145 + х) -12) + 96 = 123
209 - (145 + х - 12) + 96 = 123
209 - (133 + х) = 123 - 96
209 - (133 + х) = 27
133 + х = 209 - 27
133 + х = 182
х = 182 - 133
х = 49
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18 + (159 - у) + 34 = 72
159 - у = 72 - 34 - 18
159 - у = 20
у = 159 - 20
у = 139
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