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What is 12x plus 5 equals 9x plus 20?
It is an equation in a single variable, x.And, although the question does not ask, the solution is x = 5.It is an equation in a single variable, x.And, although the question does not ask, the solution is x = 5.It is an equation in a single variable, x.And, although the question does not ask, the solution is x = 5.It is an equation in a single variable, x.And, although the question does not ask, the solution is x = 5.
What is 2x plus 5 equals 5?
It is a linear equation in x. The equation has the solution x = 0.
Is 2 a solution of the inequality 2x 5 9?
2 is a solution of the equation, but not if it's an inequality.
What is the solution to this equation 10 - 15 plus 5 -45 plus 20?
There is no equation in the question, only an expression. An expression cannot have a solution.
Why is it necessary to check for extraneous solutions in radical equations?
1) When solving radical equations, it is often convenient to square both sides of the equation. 2) When doing this, extraneous solutions may be introduced - the new equation may have solutions that are not solutions of the original equation. Here is a simple example (without radicals): The equation x = 5 has exactly one solution (if you replace x with 5, the equation is true, for other values, it isn't). If you square both sides, you get: x2 = 25 which also has the solution x = 5. However, it also has the extraneous solution x = -5, which is not a solution to the original equation.
