What is an example of an open equation?
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An example of an open equation is an equation that contains one or more variables. In an open equation, the specific value of the variable(s) is not known and needs to be determined.
For instance, consider the equation: 2x + 5 = 13
This equation is open because it contains the variable "x." To find the solution and determine the value of "x," we need to isolate the variable on one side of the equation.
Here's how you can solve it:
1. Start by subtracting 5 from both sides of the equation:
2x + 5 - 5 = 13 - 5
2x = 8
2. Next, divide both sides of the equation by 2 to isolate "x":
2x/2 = 8/2
x = 4
Therefore, the solution to the open equation 2x + 5 = 13 is x = 4.