It depends on what x is. For example, if x=4 then the difference between 15 and x would be 11.
Hope this helps!
Answer:
I think it always work out because they try to manipulate the equation such that you'll get 3
you can actually use other values apart from the ones used
Answer:
x is 4
Step-by-step explanation:
21x+6 = 90
21x=84
x=4
Answer:
1024 in^2
Step-by-step explanation: