23=25+r

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Solution for 23=25+r equation:


Simplifying
23 = 25 + r

Solving
23 = 25 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
23 + -1r = 25 + r + -1r

Combine like terms: r + -1r = 0
23 + -1r = 25 + 0
23 + -1r = 25

Add '-23' to each side of the equation.
23 + -23 + -1r = 25 + -23

Combine like terms: 23 + -23 = 0
0 + -1r = 25 + -23
-1r = 25 + -23

Combine like terms: 25 + -23 = 2
-1r = 2

Divide each side by '-1'.
r = -2

Simplifying
r = -2

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