Ответ:
2) (63-у) + 109 = 121
172-у=121
-у=121-172
-у=-51
у=51
4) 103-(z+47)=54
103-z+47=54
150-z=54
-z=-96
z=96
2) (200+x):12=32
x=184
4) 729: (c-15)=81
c= 24
6) 12•(97-z)=240
z=77
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Ответ:
2) (63-у) + 109 = 121
172-у=121
-у=121-172
-у=-51
у=51
4) 103-(z+47)=54
103-z+47=54
150-z=54
-z=-96
z=96
2) (200+x):12=32
x=184
4) 729: (c-15)=81
c= 24
6) 12•(97-z)=240
z=77