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Home Q & A Board Science-Related Homework Help Mathematics
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micike micike
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11 years ago
Can you solve for a variable in an expression?  Explain.  Can you solve for a variable in an equation?  Explain. Write a mathematical phrase or sentence  to translate.
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wrote...
#1
11 years ago
equation has equal sign and has left and right sides eg. y^2+y=4
 espression is just a group of monomials with no equal sign
eg . y^2+4
 
wrote...
#2
11 years ago
An expression is basically

2x^2 + 2x + 2

An EQUATION, has an equality in it.

2x + 3= 2

the = sign makes it an equation.

If there is no = sign, it's just an expression

For instance 2x + 3 alone is an expression, but if you add the = 2, it becomes an equation.
wrote...
#3
11 years ago
Equation equals something eg. Y=x^2 + 2

Expression is just a statement such as 2+2
wrote...
#4
11 years ago
An expression involves variables and terms, but one can NOT solve for a variable in an expression.

Example of an expression is
x+3

An equation involves an equal sign and thus one can solve for a variable in an equation.

Example of an equation is:
x+3 = 6

See the difference.

Very important concept to grasp, but it is very simple...
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ask4helpask4help
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#5
Posts: 36
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11 years ago
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