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a)3x=2x-2
x=-2
b) 4x=5x+5
-x=5
x=-5
c)
6-15x=10x-5
x=25/11
d)
6x+3=1-4x
x=-1/5
e)
0,8x-2=6x-15
x=2,5
f)
8+2x²=2x²-x
x=-8
1.
a)
6x+3= 4x-8
x=-11/2
b)
4x-4=9x+6
x=-2
c)
7,2x-1,2=2,3x+2,3
x=0,71
d)
-x+6x²=6x²-2x
x=0