Uprość :
a) 2x + 1 + 3x =
b) 5 - 3x + 7 =
c) 2,5x - 2,5 + x =
d) 2a - 3a + 7 - 6 =
e) 3x - 6 + 4x + 2 =
f) 3x - 1 - 4x + 6 =
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2x+1+3x =5x+1
5-3x+7 =12-3x
2,5x-2,5+x =3x-2,5
2a-3a+7-6 =1-a
3x-6+4x+2 =7x-4
3x-1-4z+6 =5-z
a) 5x+1
b)12-3x
c)3,5x-2,5
d)-1a+1
e)7x+8
f)-1x+5