2x+3+132=180
2x+135=180
subtract 135 from both sides
2x=45
divide both sides by 2
x=22.5
The variable represents something that is unknown. If I want to know what to subtract from 13 to get 10, I would say 13-X=10
In this problem the Variable is X, but you can use any letter or symbol, I would not use "S", "O", or "l" to represent a variable, because they can look like 5, 0, and 1.
Answer:
1.13
Step-by-step explanation:
How many dogs are there??
Answer:
The answer is A. -27
Step-by-step explanation:
-15+(-12)= -27