To solve for x, we need to isolate x on one side of the equation.
10 - x = 25
To isolate x, we can subtract 10 from both sides of the equation.
10 - 10 - x = 25 - 10
-x = 15
To solve for x, we need to multiply both sides of the equation by -1 because -x is equivalent to -1 times x.
(-1)(-x) = (-1)(15)
x = -15
10−x=25
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