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Answer:
We conclude that the 12x is the required expression that is equivalent to 7x + 4x + x and has only one term.
Step-by-step explanation:
Given the expression
[tex]7x+4x+x[/tex]
The current expression has three terms such as 7x, 4x, and x.
The current expression can be further simplified such as
[tex]7x+4x+x[/tex]
Add similar elements: [tex]7x+4x+x=12x[/tex]
[tex]=12x[/tex]
Thus, the given expression [tex]7x+4x+x[/tex] can be expressed as the only one term such as [tex]12x[/tex].
i.e. [tex]7x+4x+x=12x[/tex]
Therefore, we conclude that the 12x is the required expression that is equivalent to 7x + 4x + x and has only one term.