Answer:

Step-by-step explanation:

Keep practicing. Never give up. Try harder. Do it until you get it right.
90% of 20 is x
20 times 90% is x
20 times .9 equals 18
The restaurant served 18 salmon filets.
Answer: Let your no.= x
double the number=2x
add 4 = 2x+4
subtract same number=2x+4-x
subtract 3=2x+4-x-3
I get my number plus 1=x+1
so equation we get
2x+4-x-3=x+1
x+1=x+1
x=x
it means x is equal to all real number
So your number can be any real number