Решить уравнения 1) | x | + 3x = 12 2) | x | - 4x = 12 3) 2(x-5) - 6| x | = -18 4) || x | - 2 | = | x + 2 |

Question

Алгебра: Решить уравнения 1) | x | + 3x = 12 2) | x | - 4x = 12 3) 2(x-5) - 6| x | = -18 4) || x | - 2 | = | x + 2 |

makel200005 · Answer

1) |х| +3х = 124х=12х=12:4х=32) |х| -4х =12-3х=12х=12:(-3)х=-43) 2(х-5)-6|х|=182х+10-6х=186х=18х=18:6х=34) ||х| -2| = | х+2 |х-2=х+2х-х=2+20=4...