4-x=25

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Solution for 4-x=25 equation: 


Simplifying
4 + -1x = 25

Solving
4 + -1x = 25

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-4' to each side of the equation.
4 + -4 + -1x = 25 + -4

Combine like terms: 4 + -4 = 0
0 + -1x = 25 + -4
-1x = 25 + -4

Combine like terms: 25 + -4 = 21
-1x = 21

Divide each side by '-1'.
x = -21

Simplifying
x = -21

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