Question

Va rog ajutati-ma imi trebuie urgent
Rezolvati:
a) | -3x -7 | =2
b) | 2-3x supra 3 | = -3
c) [ 2-3x supra 4 ] = -5

Answer 1

A) -3X=2+7, -3X=9, X=-3.
B)2×2-2×3X/2=-2×3, 4-3X=-6, -3X=-6-4, -3X=-10, X=10/3.
C)2-3X=-20, -3X=-20-2, -3X=-22, X=22/3.