Question 718194
(y - 4) - (y + 8) = 9y REMOVE ( ).
Y-4-Y-8=9Y PUT Y TERMS ON THE LEFT & INTEGERS ON THE RIGHT
Y-Y-9Y=4+8 COMBINE Y TERMS & INTEGERS.
-9Y=12
Y=12/-9
Y=-4/3 ANS.
PROOF:
(-4/3-4)-(-4/3+8)=9(-4/3)
-4/3-12/3+4/3-24/3=-36/3
(-4-12+4-24)/3=-36/3
(-40+4)/3=-36/3                          /3=12
-36/3=-36/3
-12=-12