1. Halle x en x+5=2x-7 A) 9 B) 10 C) 11 D) 12 E) 13 2. Halle x en x-2 x+4 ----- = ------ 4 8 A 7 B 8 C 9 D 10 E 11 3. Halle x en x+3 x-2 ------ + ------ = 1 2 3 a 14/5 b -14/5 c 13/5 d 12/5 e 11/8 4. Halle x 4 (x-2)+5(x+1)=4 a 8/7 b 7/8 c 9/7 d 7/9 e 8/9 5.Halle x 5x-8+2(x-2)=2 a 1 b 2 c 3 d 4 e 5