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The rules for simplifying an algebraic or numerical expression?
There are a few rules for simplifying an algebraic expression. Specifically, one should combine like terms, and then they should try to isolate the variable by doing the opposite, either multiplication or division.
How do you find the opposite of an expression?
There is no opposite it's an adjective.
How can algebraic expressions be simplified?
In many ways. It really depends on the algebraic expression. If several terms are added/subtracted, you can usually combine similar terms (terms that have the same combination of variables). If variables are multiplied, you can combine the same variable, adding the corresponding exponents. Sometimes expressions get simpler if you factor them; sometimes you have to multiply out (in other words, the opposite of factoring). Quite frequently, you have to use a combination of methods to simplify expressions. Take an algebra book, and look at some of the examples.
Can subtraction be rewritten as addition by adding the opposite?
Yes. Subtraction is the same process as adding the opposite. For example, take the expression 9 - 4. The opposite of 4 is (-4). 9 + (-4) is exactly the same as 9 - 4. This relationship is a fundamental concept of early math development, and is often poorly taught in the primary grades.
What is expression and equation?
Expressions do not have equal signs, but equations do. Just think: "Equations are equal!" CX expression is kind of like an expression. example (56+49). think of the x in e(x)pression as if it's marking out the equal sign as not to be used. Equation is kind of easy. Opposite of expression. example (56+49=105). think of the O in equati(O)n as if it's circling the equal sign as to be used.
