1)6x-3,2=7x-3(2x-2,5)
6x-3,2=7x-6x+7.5
5x=7.5+3.2
5x=10.7
x=2,14
5(x-1)+5(3x+2)=6x+8
5x-5+15x+10=6x+8
14x=3
x=3/14
44-10(3-4x)=7(5x+2)
44-30+40x=35x+14
5x=14+30-44
5x=4
x=0.8
(x-5)(x+1)-x=x^2+5
x²-5x+x-5-x=x²+5
-5x=10
x=-2
(x-1)(x-3)=(x-2)(x-4)
x²-x-3x+3=x²-2x-4x+8
2x=5
x=2,5