a) 11x-17=-11-3x
11x+3x=-11+17
14x=6 /:14
x= 3/7
b) 11x-17=-11+3x
11x-3x=-11+17
9x=6 /:9
x= 2/3
c) 15x+2=7-6x
21x=5 /:21
x=5/21
d) 5x-2=7-6x 11x=9 /:11
x=9/11
a)11x-17=-11-3x |+3x
14x-17=-11 |+17
14x=6 |/14
x=3/7 (trzy siódme)
b)11x-17=-11+3x |-3x
8x-17=-11|+17
8x=6 |/8
x=2/4 (dwie czwarte)
c)15x+2=7-6x |+6x
21x+2=7 |-2
21x=5 |/11
d)15x-2=7-6x |+6x
21x-2=7 |+2
21x=9 |/21
x=9/21
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a) 11x-17=-11-3x
11x+3x=-11+17
14x=6 /:14
x= 3/7
b) 11x-17=-11+3x
11x-3x=-11+17
9x=6 /:9
x= 2/3
c) 15x+2=7-6x
21x=5 /:21
x=5/21
d) 5x-2=7-6x
11x=9 /:11
x=9/11
a)11x-17=-11-3x |+3x
14x-17=-11 |+17
14x=6 |/14
x=3/7 (trzy siódme)
b)11x-17=-11+3x |-3x
8x-17=-11|+17
8x=6 |/8
x=2/4 (dwie czwarte)
c)15x+2=7-6x |+6x
21x+2=7 |-2
21x=5 |/11
x=5/21
d)15x-2=7-6x |+6x
21x-2=7 |+2
21x=9 |/21
x=9/21