3x + 5 = 20
x = 5
Hope this helps
Answer:
We use it to substitute an unknown number. We have a variable for a number we don’t know and as we solve the problem we can find the answer for the variable or unknown number.
Step-by-step explanation:
I hope it helps! Have a great day!
Anygays-
Answer:
It is not well defined.
Step-by-step explanation:
Because set is a collection of well defined objet. And matter contains of solid, liquid and gas
Your question seems incomplete
is there an image supposed to be attached to it
Answer:
6
Step-by-step explanation: because its online