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a fost răspuns

1)Rezolvați ecuațiile:
a) 3-2(x-1)=x+5
b) 2x-4=12 - 2x
c) 2(x+1)-4=14
d) 1-3x= 13 - 2x
e) 2(x+1)-3(1-x) = 14
f) 2x+3(x-1)=2(2x-3)+x+3
g) -x-2x-12=-3
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Răspuns :

Arianagabriela019

Răspuns:

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

-2x-x=5-3-2

-2x=-4

x=-4:(-2)=>x=2

b)2x+2x=12+4

4x=16

x=16:4=>x=4

c)2x+2-4=14

2x=14-2+4

2x=16

x=16:2=>x=8

d)-3x+2x=13-1

-x=12/•(-1)

x=-12

e)2x+2-3+3x=14

2x+3x=14-2+3

5x=15

x=15:5

x=3

f)2x+3x-3=4x-6+x+3

2x+3x-4x-x=-6+3+3

x=0

g)-x-2x=-3+12

-3x=9

x=9:(-3)

x=-3

Succes!!

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