How do you know when an equation has infinitely many solutions? ?

Question

How do you know when an equation has infinitely many solutions? ?

Answer 1

If the equation reduces to an identity that does not include the variable you are trying to solve for, such as 1 = 1, then there are infinitely many solutions.  (This is more typically what happens when you have two equations in two unknowns that represent a single line.)

Answer 2

Depends on the equation.... If an infinate amount of numbers will make X work, then the solution is infinate....

Answer 3

empty bracketlike so

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