Question

а)6m+5n-4n-4m+3n+m;

б)7m+6n-5n-8m+3n+m;

в)7х-8у+9у-5х+6;

г)3х-5у+7у-2х+4;

д)3(2х-3у)+9(у-4х);

е)7(2х-3у)-3(4х+2у

Answer 1

a) 6m+5n-4n-4m+3n+m= 3m+4n

б) 7m+6n-5n-8m+3n+m=4n

в)7х-8у+9у-5х+6=2x-1y+6

г)3х-5у+7у-2х+4=x-2y+4

д)3(2х-3у)+9(у-4х)=6x-9y+9y-4x=2x

е)7(2х-3у)-3(4х+2у)=14x-21y-12x-6y=2x-27y