Answer:
its D)
Step-by-step explanation:
-11x +3y + 25
7-8x+4y+18-3x-y
= -8x-3x +4y-y +18+7 (putting like terms together)
= -11x +3y + 25 (Adding like terms)
2
12-2=m(2+3)
m=10/5=2
m=2