Question

Раскройте скобки и упростите
(3y-2x)-(-5y+x)
-(4x-2y+6)+(5-y)

Answer 1

$\displaystyle 1)(3y-2x)-(-5y+x)=3y-2x+5y-x=8y-3x\\\\2)-94x-2y+6)+)5-y)=-4x+2y-6+5-y=-4x+y-1$