Question

1/4(-8+2b)-(-4+6b),если b=-4/11

Answer 1

1/4*(-8)+1/4*2b+4-6b=-2+0,5b+4-6b=-2-5,5b=
-2-5,5*(-4/11)=-2+5,5*4/11=-2+22/11=-2+2=0.

Answer 2

-2+1/2b+4-6b=2-11/2b=2-(11/2*(-4/11))=2-(-2)=2+2=4