" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
-2x- 5x=28 - 7
-7x = 21 / (-7)
x= -3
b) 8x-5= 9x-5
8x-9x= -5+5
-x= 0
x= 0
c) 6x+2x - 10= 3x + 5
8x - 3x= 5+10
5x= 15 / :5
x= 3
d) 12-4x+8= 8x+2- 3x
20 - 4x= 5x+2
-4x - 5x = 2 - 20
-9x = -18 / (-9)
x= 2
e) x + 2x + 3x = 5 + 6 +7
6x = 18 / 6
x= 3
f) 4x + 2 + 5x - 3 = 6x - 4 -7x + 5
9x -1 = -x +1
10x = 2 / 10
x= 0,2
g) 0 = 4x - 4 = 5x - 5
hmm tu wszystko dobrze napisałeś ?
h) 1,5x + 1,2 = 0,5x - 3x + 3,6
4x= 2,4 / :4
x= 0,6