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rezolva in R ecuatia am nevoie urgent

Rezolva In R Ecuatia Am Nevoie Urgent class=

Răspuns :

a) 3-2=6x-4x
2x=1
x=1/2

b) 3-6x=2x-17
3+17=2x+6x
8x=20
x=5/2

c) 2x+2=3x-3
3x-2x=-5
x=-5

d) 2x/5-1/5= 4
2x-1=4×5 => 2x-1=20 => x=21/2

e)8x/3-2/9=1/9
24x-2=1
x=1/8

f) 2x+2=3+2x
0=1 ... fals