Final answer:
To isolate a variable means to rearrange the equation so that the variable is alone on one side.
Step-by-step explanation:
To isolate a variable means to rearrange the equation so that the variable is alone on one side. Let's say we have an equation:
2x + 5 = 15
To isolate the variable x, we need to get rid of the 5 on the left side. We can do this by subtracting 5 from both sides of the equation:
2x + 5 - 5 = 15 - 5
Simplifying:
2x = 10
Now, the variable x is isolated on one side, and we can continue solving for it if needed.
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