Błagam odpowiedzcie daje naj tresc w załączniku
d) 3- x+2 = 4 + x - 1
------ ------
4 3 { * 12
36 - 3(x + 2) = 48 + 4(x - 1)
36 - 3x - 6 = 48 + 4x - 4
-3x - 4x= 48 - 36 + 6 - 4
- 7x = 14 {:(- 7)
x = - 2
e) 5x - 4= x - 2 + 2 1/6x
------- ---
2 3 { * 6
3(5x - 4) = 2x - 12 + 13x
15x - 12 = 2x - 12 + 13x
15x - 13x - 2x= - 12 + 12
0=0
f) x + 3 - x + 1 = 2x + 9
------- ------ -------
2 3 6 { * 6
3( x + 3) - 2(x + 1) = 2x + 9
3x + 9 - 2x - 2 = 2x + 9
3x - 2x - 2x =9 - 9 + 2
- x = 2 { *(-)
x = -2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
d) 3- x+2 = 4 + x - 1
------ ------
4 3 { * 12
36 - 3(x + 2) = 48 + 4(x - 1)
36 - 3x - 6 = 48 + 4x - 4
-3x - 4x= 48 - 36 + 6 - 4
- 7x = 14 {:(- 7)
x = - 2
e) 5x - 4= x - 2 + 2 1/6x
------- ---
2 3 { * 6
3(5x - 4) = 2x - 12 + 13x
15x - 12 = 2x - 12 + 13x
15x - 13x - 2x= - 12 + 12
0=0
f) x + 3 - x + 1 = 2x + 9
------- ------ -------
2 3 6 { * 6
3( x + 3) - 2(x + 1) = 2x + 9
3x + 9 - 2x - 2 = 2x + 9
3x - 2x - 2x =9 - 9 + 2
- x = 2 { *(-)
x = -2