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2a-a=1+3
a=4
b) 4b+3=3b-4
4b-3b=-4-3
b=-7
c) 7+3c=-5+2c
3c-2c=5-7
c=-2
d) 5d+2=3d
5d-3d=-2
2d=-2||:2
d=-1
e) 6e-2=7e+5
6e-7e=5+7
-1e=12 ||:(-1)
e=-12
f) 6f-1=f+2
6f-f=2+1
5f=3 ||:5
f=0,6
2a-a= 1 + 3
a = 4
b) 4b+3=3b-4
4b-3b=-4 -3
b = 7
c) 7+3c=-5+2c
3c-2c=-5-7
c = 12
d) 5d+2=3d
5d-3d = 2
2d = 2 / 2
d = 1
e) 6e-2=7e+5
6e- 7e = 5 + 2
- e = 7 / ( - 1 )
e = -7
f) 6f-1=f+2
6f-f = 2 + 1
5f = 3 / 5
f = 3/5
2a-a=1+3
a=4
b) 4b+3=3b-4
4b-3b=-4+3
b=-1
c) 7+3c=-5+2c
3c-2c=-5-7
c=-12
d) 5d+2=3d
5d-3d=-2
2d=-2
d=-1
e) 6e-2=7e+5
6e-7e=5+2
-1e=7/ :(-1)
e=-7
f) 6f-1=f+2
6f-f=2+1
5f=3/ :5
f=0.6
Jak czegoś nie rozumiesz to daj znać