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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.
Is 9x plus 532 an expression?
Is 9x plus 5=32 AN EXPRESSION
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 3 plus 3 plus 3 plus 3 a numerical or variable expression?
It is a numerical expression.
Is 2 plus 12 an expression or equation?
an expression
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 is plus 2x-5?
-3
What is the verbal expression of 81 2x?
eigthy one plus a number
What are mathmematical sentence?
One plus one equals is to two. This is a mathematical expression in a sentence.
Is 9x plus 532 an expression?
Is 9x plus 5=32 AN EXPRESSION
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 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.
