2x-3/4=1/2 + x *4 8x-3=2+4x 8x-4x=2+3 4x=5;4 x=54 Spr. 8* 54-3=2+4* 54 7=7 D) 2x+3/5 = 2-x/3 + x*15 30x+9=30-5x+15x 30x+5x-15x=30-9 20x=2120 x=2120 30* 2120+9=30-5* 2120+15* 2120 40,5=30-5,25+15,75 40,5=40,5 F) x/2 = 2/5(4-x) - 4*10 5x=4(4-x)-40 5x=16-4x-40 5x+4x=-24 9x=-24;9 x=-249 5*(-248)=-24-4(-249) -13 13=-24+10 23 -13 13=13 13 H) 2x - 3x+5/4 = -1/4x - 1 *4 8x-12x+5=-x-4 -4x+x=-4-5 -3x=-11(-3) x=113 8*113-12* 113+5=-113-4 29 13-44+5=-3 23-4 -7 23=-7 23
B. 2x - 3/4 = 1/2 + x /*4 8x - 3 = 2 + 4x 8x - 4x = 2 + 3 4x = 5 /:4 x = 5/4 spr. L = 2 *(5/4) - 3/4 = 10/4 - 3/4 = 7/4 P = 1/2 + 5/4 = 2/4 + 5/4 = 7/4 L = P D) 2x + 3/5 = 2 - x/3 + x /*15 30x + 9 = 30 - 5x + 15x 30x + 5x - 15x = 30 - 9 20x = 21 /:20 x = 21/20 spr. L= 2(21/20) + 3/5 = 42/20 + 12/20 = 54/20 = 2i14/20= 2i7/10 P = 2 - 21/20 * 1/3 + 21/20 = 2 - 21/60 + 21/20 = 2 -21/60 +63/60=2i42/60 = 2i7/10 L = P F. x/2 = 2/5(4 - x) - 4 x/2 = 8/5 - 2/5x - 4 /*10 5x = 16 - 4x - 40 5x + 4x = 16 - 40 9x = - 24 /:9 x = -24/9 spr. L = (-24/9) : 2 = (-24/9) * 1/2 = -24/18 = -8/6 = - 1i2/6 = -1i1/3 P = 2/5 (4 - (-24/9) - 4 = 2/5 ( 36/9 + 24/9) - 4= 2/5 *60/9 - 4= 120/45 - 4 = = 2 i 30/45 - 3i45/45 = -1i15/45= -1 i 1/3 L = P H. 2x - 3x + 5/4 = -1/4x - 1 /*4 8x - 12x + 5 = -x - 4 8x - 12x + x = -4 - 5 - 3x = -9 /:(-3) x = 3 spr. L = 2 * 3 - 3* 3 + 5/4 = 6 - 9 + 5/4 = -3 + 5/4 = -2i4/4 + 1i1/4 = -1i3/4 P = - 1/4 * 3 - 1 = - 3/4 - 1 = -1i3/ 4 L = P
