Explain how to get the variable alone in each equation..x + 13 = 25
x + 13 - 13 = 25 - 13
that's right. you subtract 13 to both sides of equation to get x alone.
x + 13 - 13 = 25 - 13
x = 12
To get the variable alone in the equation x + 13 = 25, you need to isolate it by performing the same operation on both sides of the equation.
Step 1: Start by subtracting 13 from both sides of the equation.
x + 13 - 13 = 25 - 13
By subtracting 13 from both sides, we cancel out the +13 on the left side of the equation.
Step 2: Simplify the equation by performing the subtraction.
x = 12
Now, the variable x is alone on one side of the equation, which means we have successfully isolated it. The solution to the equation is x = 12.