Ответ:
1.)
1)-217-(-264)=47. 3)173-239=-66
2)-125-(+346)=-471. 4)-241-659=-900
2.)
1)(95-47)+(-26)=48+(-26)=+22
2)(31-38)+(-56)=-7-56=-63
3)-79-(8-26)=-79+18=-61
3.)
1)-11-12-13-14+7+11+12+13+14=+7
2)1+2+3+4+(-5)+(-4)+(-3)+(2)+(-1)=-5
3)(-10-8-7)+(8+10+7+5)=+5
4)9+6+5+(-3-5-9-6)=-3
4.)
1)х+27=-21
х=-21-27
х=-48
2)х-34=-72
х=-72+34
х=-38
3)16-х=38
-х=38-16
-х=22
х=-22
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Answers & Comments
Ответ:
1.)
1)-217-(-264)=47. 3)173-239=-66
2)-125-(+346)=-471. 4)-241-659=-900
2.)
1)(95-47)+(-26)=48+(-26)=+22
2)(31-38)+(-56)=-7-56=-63
3)-79-(8-26)=-79+18=-61
3.)
1)-11-12-13-14+7+11+12+13+14=+7
2)1+2+3+4+(-5)+(-4)+(-3)+(2)+(-1)=-5
3)(-10-8-7)+(8+10+7+5)=+5
4)9+6+5+(-3-5-9-6)=-3
4.)
1)х+27=-21
х=-21-27
х=-48
2)х-34=-72
х=-72+34
х=-38
3)16-х=38
-х=38-16
-х=22
х=-22