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an equation that's true for all values is an identity.
Find values for the variable that satisfy the equation, that is if you replace those values for the variable into the original equation, the equation becomes a true statement.
The graph of an equation is a visual representation of the values that satisfy the equation.
The solution to an equation consists of the value (or values) of all the variables such that the equation is true when the variable(s) take those values.
how the values of the slope affect the overall meaning of the equation?
It is the set of values for all the variables in the equation which make the equation true.
You need to know the rate of the reaction, as well as the concentrations of all reactants. Then you plug those values into the equation of rate = k[A][B] or whatever the rate equation happens to be.
An equation is two expessions that have equal values
The equation isn't quite clear - some symbols get lost in the questions. In any case, you can solve the equation for "y", then replace some values of "x" and use the equation to calculate the corresponding values for "y".
A solution to an equation is a set of values for the variables in the equation which make it true.
a formula is an equation that performs mathematical calculations on number values in cells
In math speak: Solving the equation means finding 'x' values that make the equation true. These 'x' values are called the roots of the quadratic.