11. Rezolvaţi în mulţimea Z ecuaţia: a) 3⋅(x + 7) =12; b) − 2⋅(x + 9) = −28; c) 5⋅(3− 2x) = −10; d) 2x :| −5 | = 8; e) 32 :(−2x) = 1; f) 7 ⋅(2 − x) =

11. Rezolvaţi în mulţimea Z ecuaţia:

a) 3⋅(x + 7) =12; b) − 2⋅(x + 9) = −28;
c) 5⋅(3− 2x) = −10; d) 2x :| −5 | = 8;
e) 32 :(−2x) = 1; f) 7 ⋅(2 − x) = | −42 |.

1 Answer

11. Rezolvaţi în mulţimea Z ecuaţia: a) 3⋅(x + 7) =12; b) − 2⋅(x + 9) = −28; c) 5⋅(3− 2x) = −10; d) 2x :| −5 | = 8; e) 32 :(−2x) = 1; f) 7 ⋅(2 − x) = | −42 |.

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