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you isolate the variable to the left side of the equation and keep all other terms and factors to the right side, as in solving for x in 2- x = 2. You have to use basic algebraic manipulation to isolate the chosen variable, i.e., adding multiplying or dividing by an equal amount to each side of the statement in order to isolate x.
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How do you find the value of a variable in similar figures?
the figures are similar. Find the value of each variable. solve
How do you find the value of a variable of a proportional ratio?
Cross multiply then solve for the variable.
Why is it important to be able to solve for the variable in a formula?
Solving for one variable makes it easy to put in a value for the other variables, and find a value for the first variable.
How do you know whether a relation is a function?
Use the definition of a function. If, for any value of one variable, there is only a single possible value of the second variable, then the second variable is a function of the first variable. The second variable is often called the "dependent variable". If you can solve an equation explicitly for the dependent variable, then it is a function. If you can NOT solve it for a variable, it may or may not be a function - it turns out that some equations are hard or impossible to solve explicitly for one of the variables.
What does it mean to solve a polynomial?
Find values of the variable for which the value of the polynomial is zero.
