legal equation
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In mathematics, it is called an identity.
No, it's the other way round - an equation that's true for every value of the variable(s) is called an identity. Of course, an identity is also an equation.
linear equation in one variable
Such a value is said to be a solution, or a root, of the equation.
For a value to be a solution to an equation, when you substitute the value for the variable, the equation becomes true. 4+B=6 B is the variable. 2 is the solution Substitute 2 for B 4+2=6 The equation is true.
solution
No, it's the other way round - an equation that's true for every value of the variable(s) is called an identity. Of course, an identity is also an equation.
linear equation in one variable
It's the value that when substituted in for the variable, makes the equation true. Ex: x + 1 = 3 The value 2, when substituted for the variable x, makes the equation true.
You substitute the value of the variable into the equation and simplify. If the rsult is a true statement then that value of the variable really does satisfy the equation.
Such a value is said to be a solution, or a root, of the equation.
Solution
an solution
That's the "solution" of the equation.
For a value to be a solution to an equation, when you substitute the value for the variable, the equation becomes true. 4+B=6 B is the variable. 2 is the solution Substitute 2 for B 4+2=6 The equation is true.
solution
The goal is to find what value or values the variable may have, to make the equation true.
A linear equation can have only one zero and that is the value of the variable for which the equation is true.