-5+25-r=25

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Solution for -5+25-r=25 equation: 


Simplifying
-5 + 25 + -1r = 25

Combine like terms: -5 + 25 = 20
20 + -1r = 25

Solving
20 + -1r = 25

Solving for variable 'r'.

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

Add '-20' to each side of the equation.
20 + -20 + -1r = 25 + -20

Combine like terms: 20 + -20 = 0
0 + -1r = 25 + -20
-1r = 25 + -20

Combine like terms: 25 + -20 = 5
-1r = 5

Divide each side by '-1'.
r = -5

Simplifying
r = -5

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