7х-3/6=5х+1/2
7x-5x=1/2+3/6
2x=1
x=1/2
(3х-5)(х+2)=3х^2
3x^2+6x-5x-10=3x^2
3x^2+x-10=3x^2
x-10=0
x=10
7х-3/6=5х+1/2
7x-5x=1/2+3/6
2x=1
x=1/2
(3х-5)(х+2)=3х^2
3x^2+6x-5x-10=3x^2
3x^2+x-10=3x^2
x-10=0
x=10