1. Rozwiaż rownania:
a). 7x - 6 = - 6x + 7
b). ⅓× + 2 = x
c). -7(2x+1) = 4
d). 8 = 6(x-1) - 4x
Dam naj ;))
a) 7x - 6 = 6x+7 / + 6
7x = 6x + 13 / - 6x
x = 13
b) 1/3 x + 2 = x / - 2
1/3 x = x / - x
- 2/3x = - 2
c) - 7 ( 2x +1) = 4
- 14x - 7 = 4 / + 7
- 14x = 11/ : 11
x = - 11/14
d) 8 = 6(x-1) - 4x
8 = 6x - 6 - 4x / + 6
14 = 2x
2x = 14 / : 2
x = 7
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a) 7x - 6 = 6x+7 / + 6
7x = 6x + 13 / - 6x
x = 13
b) 1/3 x + 2 = x / - 2
1/3 x = x / - x
- 2/3x = - 2
c) - 7 ( 2x +1) = 4
- 14x - 7 = 4 / + 7
- 14x = 11/ : 11
x = - 11/14
d) 8 = 6(x-1) - 4x
8 = 6x - 6 - 4x / + 6
14 = 2x
2x = 14 / : 2
x = 7