ROZWIĄŻ RÓWNANIE a) (4-2x)-(x+3)=(x-5)+(-3-x) 4 - 2x -x -3 = x + 5 - 3 - x 1 - 3x = -8 -3x = -9/ :(-3) x = 3 b) (3-2x)+(3x+4)=-(3-2x)+(5x+4) 3 - 2x + 3x + 4 = -3 + 2x + 5x + 4 7 + x = 1 + 7x -6x = -6/: (-6) x = 1 c) -(x+3)+(2x-1)=(1+4x)+(3+x) -x - 3 + 2x - 1 = 1 + 4x + 3 + x x -4 = 5x + 4 -4x = 8/ : (-4) x = -2 d) -(x+3)-(2x+8)=(-3-2x)+(2x+1) -x - 3 - 2x - 8 = -3 - 2x + 2x + 1 -3x -11 = -2 -3x = 9/ : (-3) x = -3
a) (4-2x)-(x+3)=(x-5)+(-3-x)=27-x kwadrat b) (3-2x)+(3x+4)=-(3-2x)+(5x+4)=8x=24-26x kwadrat c) -(x+3)+(2x-1)=(1+4x)+(3+x)=18x=6x kwadrat d) -(x+3)-(2x+8)=(-3-2x)+(2x+1)=6x+6x kwadrat+21 licze na naj;p
a) (4-2x)-(x+3)=(x-5)+(-3-x) 4-2x-x-3=x-5-3-x 1-3x=-8 /-1 -3x=-9 /:(-3) x=3 b) (3-2x)+(3x+4)=-(3+2x)+(5x+4) 3-2x+3x+4=-3-2x+5x+4 7+x=1+3x /-7 x=-6+3x /-3x -2x=-6 /:(-2) x=3 c) -(x+3)+(2x-1)=(1+4x)+(3+x) -x-3+2x-1=1+4x+3+x x-4=4+5x /-5x -4x-4=4 /+4 -4x=8 /:(-4) x=-2 d) -(x+3)-(2x+8)=(-3-2x)+(2x+1) -x-3-2x-8=-3-2x+2x+1 -3x-11=-2 /+11 -3x=8 /:(-3) x=-8/3