What is the variable in the following expression:
4x +3 + 7x
![What is the variable in the following expression 4x 3 7x class=](https://us-static.z-dn.net/files/dc0/81ac964de724c0140fc433ef0d772fec.png)
Answer:
x
Step-by-step explanation:
the variable is a symbol
something whose value can change over time