Answer:
![\textbf{4 is correct}](https://tex.z-dn.net/?f=%5Ctextbf%7B4%20is%20correct%7D)
Step-by-step explanation:
<em>⇒A coefficient is an integer that is written along with a variable or it is multiplied by the variable.</em>
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<em>⇒when a term is made up of a constant multiplied by a variable or variables, that constant is called a coefficient. In the term 1x, the coefficient is 1.</em>
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Answer:
Subtraction is the inverse (opposite operation) of addition
Step-by-step explanation:
It would be still be X. Any number times 1 is that number. For example 3x1=3 and 325x1=325 :)