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You need to manipulate the equation in such a way that anything that is next to the variable disappears. Here is an example. Solve the equation:2x + 5 = 17
Since you want to have the "x" alone on one side, you want to get rid of the 2, and of the 5. Let's start with the 5 (it's a bit easier that way). The opposite of adding 5 is to subtract 5, so you do exactly that:
2x + 5 - 5 = 17 -5
2x + 0 = 12
2x = 12
(Note that you don't need to write out all this detail; with a bit of practice, you can write out the last equation directly.)
Now, get rid of the "2". Since a multiplication is involved, you need to divide by 2. The result is:
2x/2 = 12
x = 6
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoeither add or subtract the opposite and isolate the variable to one side. if the variable is attached by a number simply divide it on both sides by the number attached.
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What is g in math?
it could be a variable in a algebraic equation.
What do you call a math term with a letter in the equation?
the letter is called a variable because it can be changed
How do you make an expression in math?
it is basically an equation without an equals sign. usually has a variable in it.
How can variables be used to help solve a math problem?
If you don't know something in a math equation you can replace it with a variable and then solve it algebraically.
How do you get a constant in math?
Remove the variable from a value or one side of an equation. A constant is just a number.
What is the math term VEST?
variable equation solve it test it
Variable alone math?
A variable alone in math, as in 3y2 x n3 = 3y2n3 means to manipulate the lone variable by the factors afecting it.
What is g in math?
it could be a variable in a algebraic equation.
What does open sentence mean?
In math, that refers to an equation which includes a variable. Such an equation may be true, or false, depending on the value assigned to the variable.
What does the word domain mean in math?
Domain is the independent variable in an equation. It is what you put "in" the equation to get the Range.
What is a number a variable or a product of numbers in a math equation?
It could be a "term".
How do you easily balance and solve a scientific equation?
A scientific equation is basically a math equation. Those come in different kinds; each kind needs special techniques for solving. In the simplest case, you have to solve for a single variable; try to transform the equation so that your variable is on the left, and anything else is on the right.
How do you do math applications?
find the variable(s). then write the equation(s). finally simplify the equation(s)
What does SOLVE stand for in math?
"Solve an equation" means "find out, for which values of the variable or variables is the equation true".
Why do you isolate variables for math?
You isolate variables in math because the point of an equation is to solve for the variables. By isolating the variables you have learned what that variable stands for and thus solved the equation.
What do you call a math term with a letter in the equation?
the letter is called a variable because it can be changed
How do you make an expression in math?
it is basically an equation without an equals sign. usually has a variable in it.
