1) -7x+5=11x+41 -7x-11x=41-5 -18x= 36 x= -2 L=-7x+5 L=-7 * (-2) + 5 L= 14+5=19 P=11x+41 P=11 * (-2) +41 P= -22+41 P=19 L=P 2) 36x-14=14x-36 36x-14x=-36+14 22x= -22 x= -1 L=36 * (-1)-14 L=-36-14 L=-50 P=14x-36 P=14*(-1)-36 P=-50 p=L 3) 3x-4=4x 3x-4x=4 -x=4 x= -4 L=3x-4 L=3*(-4)-4 L=-12-4 L=-16 P=4x P= 4*(-4) p=-16 l=p 4) -27x+1=2x+59 -27x-2x=59-1 -29x=58 x= -2 L=-27*(-2)+1 L=54+1 L=55 P=2*(-2)+59 P=-4+59 P=56 l=p 5) 45x-19 = 19x-45 45x-19x= -45+19 26x= - 26 x = -1 L=45*(-1)-19 L=-45-19 L=-64 P=19*(-1)-45 P=-19-45 P=-64 L=p 6) 82x - 9 = - 18x +1 82x + 18x= 1+9 100x=10 10x= 1 x= 0,1 L=82*0,1-9 L=8,2-9 L=0,8 P=-18x+1 P=-18*0,1+1 P=0,8 L=P
1. -7x+5=11x+41 -7x – 11x = 41 – 5 - 18x = 36 / : (-18) x = -2 spr. -7* (-2) + 5 = 11 *(-2) + 41 14 + 5 = - 22 + 41 19 = 19 L = P 2) 36x-14=14x-36 36x – 14x = - 36 + 14 22x = -22 /: 22 x = -1 spr. 36 * (-1) – 14 = 14*(- 1) – 36 -36 – 14 = - 14 – 36 -50 = - 50 L = P 3) 3x-4=4x 4x – 3x = -4 x = - 4 3*(-4) – 4 = 4 *(-4) -12-4 = -16 -16 = - 16 L =P 4) -27x+1=2x+59 -27x – 2x = 59 – 1 -29x = 58 /: (-29) x = -2 spr. -27*(-2) + 1 = 2*(-2) + 59 54 + 1 = - 4 + 59 55 = 55 L =P 5) 45x-19=19x-45 45x – 19x = - 45 +19 26x = - 26 /:26 x = -1 spr. 45*(-1) – 19 = 19 *(-1) – 45 -45 – 19 = - 19 – 45 -64 = - 64 L=P 6) 82x-9=-18x+1 82x + 18x = 1 + 9 100x = 10 /:100 x = 10/100 x = 1/10 spr. 82 * 1/10 – 9 = -18 * 1/10 + 1 8,2 – 9 = -1,8 + 1 -0,8 = - 0,8 L =P