-2|2.2x-3.3|=-6.6 solve for x
-2[2.2x-3.3]=-6.6[2.2x-3.3]=-6.6 /-2[2.2x-3.3]=3.3We have two equations:1)2.2x-3.3=3.32.2x=3.3+3.32.2x=6.6x=6.6/2.2x=32)2.2x-3.3=-3.32.2x=-3.3+3.32.2x=0x=0/2.2x=0Answer: we have two solutions: x=0 and x=3.
-2|2.2x - 3.3| = -6.6. From it: |2.2x - 3.3| = 3.3. We have 2 variants: 1) 2.2x - 3.3 = -3.3. Then 2.2x = -3.3 + 3.3, so 2.2x = 0 => x = 0. 2) 2.2x - 3.3 = 3.3. Then 2.2x = 3.3 + 3.3, so 2.2x = 6.6 => x = 3. Answer: 0; 3.
