1.Rozwiąż równania:
a) 3x - 2 (x+1) = 3 + 3x
b) 5 (x-1) + 2x = 2 (x+1) + 8
c) 2 (4-x) = 5 (x-1) - 1
d) 2 (x-1) - 5 = 3 (2x-3) - 8x
e) 12x - (2x+1) = 9 (2-x)
f) 3 (x+1) - 4 = 2 (x-2) + 2x
!tylko za wszystkie POPRAWNIE wypełnione zadania daje NAJ!
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
1.Rozwiąż równania:
a)
3x - 2 (x+1) = 3 + 3x
3x-2x-2=3+3x
3x-2x-3x=3+2
-2x=5
x=-2,5
b)
5 (x-1) + 2x = 2 (x+1) + 8
5x-5+2x=2x+2+8
5x+2x-2x=2+8+5
5x=15
x=3
c)
2 (4-x) = 5 (x-1) - 1
8-2x=5x-5-1
-2x-5x=-5-1-8
-7x=-14
x=2
d)
2 (x-1) - 5 = 3 (2x-3) - 8x
2x-2-5=6x-9-8x
2x-6x+8x=-9+2+5
4x=-2
x=-0,5
e)
12x - (2x+1) = 9 (2-x)
12x-2x-1=18-9x
12x-2x+9x=18+1
19x=19
x=1
f)
3 (x+1) - 4 = 2 (x-2) + 2x
3x+3-4=2x-4+2x
3x-2x-2x=-4-3+4
-x=-3
x=3
a) 3x - 2 (x+1) = 3 + 3x
3x -2x-2 =3+3x
x-2=3+3x
-2x = 5
x=-2½
b) 5 (x-1) + 2x = 2 (x+1) + 8
5x-5 +2x =2x+2 +8
7x -5 = 2x +10
5x=15
x=3
c) 2 (4-x) = 5 (x-1) - 1
8 -2x = 5x -5-1
8-2x=5x-6
-7x= -14
x=2
d) 2 (x-1) - 5 = 3 (2x-3) - 8x
2x-2 -5 = 6x -9-8x
2x -7 = -2x -9
4x = -2
x=-½
e) 12x - (2x+1) = 9 (2-x)
12x-2x-1 = 18 -9x
10x-1=18-9x
19x =19
x=1
f) 3 (x+1) - 4 = 2 (x-2) + 2x
3x +3 -4 = 2x -4 +2x
3x-1 = 4x-4
-x = -3
x=3
a) 3x - 2 (x+1) = 3 + 3x
3x - 2x - 2 = 3 + 3x
3x - 2x - 3x = 2 + 3
-2x = 5/: (-2)
x = -5/2
b) 5 (x-1) + 2x = 2 (x+1) + 8
5x - 5 + 2x = 2x + 2 + 8
5x + 2x - 2x = 5 + 2 + 8
5x = 15/:5
x = 3
c) 2 (4-x) = 5 (x-1) - 1
8 - 2x = 5x - 5 - 1
-2x - 5x = -8 - 5 - 1
-7x = -14/:(-7)
x = 2
d) 2 (x-1) - 5 = 3 (2x-3) - 8x
2x - 2 - 5 = 6x - 9 - 8x
2x - 6x + 8x = 2 + 5 - 9
4x = -2/:4
x = -2/4
e) 12x - (2x+1) = 9 (2-x)
12x - 2x - 1 = 18 - 9x
12x - 2x + 9x = 1 + 18
19x = 19/:19
x = 1
f) 3 (x+1) - 4 = 2 (x-2) + 2x
3x + 3 - 4 = 2x - 4 + 2x
3x - 2x - 2x = -3 + 4 - 4
-x = -3
X = 3