When the value of a variable in an algebraic expression changes, the value of the expression can change.
They are callled: Identical equations or Identities See: http://www.tutorvista.com/search/value-algebraic-expressions
no algebraic expressions do not have equal signs but equations do.
Algebraic expressions are terms that do not include an equality sign
They are identical or equivalent.
Algebraic expressions are the written relations of or between variables. For example, x2, 1/x, and x + y + z are all algebraic expressions. Algebraic equations are simply algebraic expressions that equate to something. For example, x2 = 4, 1/x = y, and x + y + z = 42 are all algebraic equations. In general, one differentiates algebraic expressions from exponential, trigonometric, hyperbolic, and logarithmic expressions by requiring algebraic expressions to be confined to polynomial expressions. I've added a link regarding polynomials below.
They are called: Identical equations or IdentitiesSee: http://www.tutorvista.com/search/value-algebraic-expressions-33 - -7 = ss = -26
Yes. That is the definition of an algebraic expression.
the word algebraic is arabic.
Only like terms can be subtracted or added in algebraic expressions.