9(2w−y)=21w−9y
First you multiply the numbers in the parenthesis by 9

subtract. 21w-18w=3w

add. -9y+9y=0

divide.

Final answer is 0.
Its 25.2 but what do u mean by that
Answer:
find he domain by finding where the equation is defined. the range is the set of values that correspond with the domain.
13x=8x+25
5x=25
X=5
5 is the answer
Answer:
10
Step-by-step explanation:
divide 1800 by 20 and 1800 by 18 and find the difference