Ответ:
1)(x-9)/4 +2=(-7-9)/4 +2=-16/4 +2=-4+2=-2
2)(3x+4)/2 -8=(18+4)/2 -8=22/2 -8=11-8=3
3) (7-2x)/3 + 6=(7+8)/3 +6 =15/3 +6=5+6=11
4)10-(8x+9)/7=10-(40+9)/7=10-49/7=10-7=3
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Ответ:
1)(x-9)/4 +2=(-7-9)/4 +2=-16/4 +2=-4+2=-2
2)(3x+4)/2 -8=(18+4)/2 -8=22/2 -8=11-8=3
3) (7-2x)/3 + 6=(7+8)/3 +6 =15/3 +6=5+6=11
4)10-(8x+9)/7=10-(40+9)/7=10-49/7=10-7=3