Answer:
15
Step-by-step explanation:
You seem to say that y=15, so, wouldn't that be the new value?
X-3y=-15
-3y=-x-15
-1(-3y=-x-15)
3y=x+15
3/3y=1/3x+15/3
y=1/3x+5
Answer:
-21x^2+6x+3
Step-by-step explanation:
distributive property
Answer:
caca sh
Step-by-step explanation:
shart