77-r=27

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Solution for 77-r=27 equation: 


Simplifying
77 + -1r = 27

Solving
77 + -1r = 27

Solving for variable 'r'.

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

Add '-77' to each side of the equation.
77 + -77 + -1r = 27 + -77

Combine like terms: 77 + -77 = 0
0 + -1r = 27 + -77
-1r = 27 + -77

Combine like terms: 27 + -77 = -50
-1r = -50

Divide each side by '-1'.
r = 50

Simplifying
r = 50

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