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Ответ

Ответ дан
pzahar0w

Ответ:

Объяснение:

а)х+7=12

х=12-7

х=5

б) х-3=-14

х=-14+3

х=-11

г)3х+7=2

3х=2-7

3х=-5

в)х-3=4

х=4+3

х=7

Ответ

Ответ дан
971564

Ответ:

a)|x|+7=12

x=12-7

x=5

б)|x|-3=-14

x=-14+3

x=-11

в)|x-3|=4

x-3=4 x-3=-4

x=3+4 x=-4+3

x=7 x=-1

г)|3x+7|=2

3x+7=2 3x+7=-2

3x=2-7 3x=-2-7

3x=-5 3x=-9

x=-5/3 x=-2

д)(4x+2)(2x-6)x=0

4x+2=0 2x-6=0 x=0

4x=0-2 2x=0+6

4x=-2 2x=6

x=-2÷4 x=6÷2

x=-0,5 x=3 x=0

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