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The expression "plus one" simply means to add 1 to whatever it is applied to.
If you are referring to the "+1" sometimes found in comments on forum posts and the like, it is a reference to buttons labelled with "+1" or similar text, used to vote for the post or indicate a positive opinion of the post.
Addendum:
It's also possible that this question refers to the phrase as used on invitations - where the invitation is for the recipient and their guest. It can be used when you wish to invite someone to a function and aren't sure of who they're currently seeing...
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What is the answer to 3x plus 2y-3 and 2x plus 3y equals -2?
3x plus 2y - 3 is an expression. There can be no answer to one expression and one linear equation in two variables.
Which description best represents the expression you plus 3v?
The expression you plus 3v is not a real expression. People can say Òyou plus me could go do something.Ó As a question or you plus
Is 9x plus 532 an expression?
Is 9x plus 5=32 AN EXPRESSION
Is 3 plus 3 plus 3 plus 3 a numerical or variable expression?
It is a numerical expression.
What is 2 X to the second power plus 3x plus one?
This expression could be reordered as 1 + 3x + 2x2.
What is the origin of the expression 'in a nutshel'?
no one knows exactly
What is the answer to 3x plus 2y-3 and 2x plus 3y equals -2?
3x plus 2y - 3 is an expression. There can be no answer to one expression and one linear equation in two variables.
What is a quotient of the rational expression x plus 2 over x plus 8?
That one, there!
What is 83x plus 523?
83x + 523 is an algebraic expression. Were this expression set to be equal to something, one could then solve this expression for x.
What are mathmematical sentence?
One plus one equals is to two. This is a mathematical expression in a sentence.
What is plus 2x-5?
-3
What is the verbal expression of 81 2x?
eigthy one plus a number
Which description best represents the expression you plus 3v?
The expression you plus 3v is not a real expression. People can say Òyou plus me could go do something.Ó As a question or you plus
Is 9x plus 532 an expression?
Is 9x plus 5=32 AN EXPRESSION
Is 3 plus 3 plus 3 plus 3 a numerical or variable expression?
It is a numerical expression.
Is an expression in one variable with a degree of 2 written in the form ax2 plus bx plus c?
Yes
What is 3m plus 9?
It is a binomial expression with one variable, m.
