Помогите решить:
1) x - (-5) = +12
2)x - (-12) = -15
3)x - (+18) = -18
4)x - (+9,4) = +8,3
5)x - (-100) = 0
1) x - (-5) = +12
2)x - (-12) = -15
3)x - (+18) = -18
4)x - (+9,4) = +8,3
5)x - (-100) = 0
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Answers & Comments
2)-27
3)0
4)17,7
5)-100
х=12-5
х=7
2) х+12=-15
х=-12-15
х=-27
3)х-18=-18
х=-18+18
х=0
4) х-9,4=8,3
х=9.4+8.3
х=17.7
5)х+100=0
х=-100