How do you isolate the variable in x+5=12?

x+5=12

Subtract 5 from both sides.

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To isolate the variable in the equation x + 5 = 12, you can follow these steps:

Step 1: Start with the given equation: x + 5 = 12.

Step 2: To isolate the variable x, we want to get rid of the constant term 5 on the left side. We can achieve this by subtracting 5 from both sides of the equation. -5 is subtracted to maintain equality.

x + 5 - 5 = 12 - 5.

Simplifying this, we get:

x = 7.

Step 3: Now, we have isolated the variable x, and the solution to the equation is x = 7.

So, x is equal to 7.