84=r+51

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Solution for 84=r+51 equation:


Simplifying
84 = r + 51

Reorder the terms:
84 = 51 + r

Solving
84 = 51 + 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.
84 + -1r = 51 + r + -1r

Combine like terms: r + -1r = 0
84 + -1r = 51 + 0
84 + -1r = 51

Add '-84' to each side of the equation.
84 + -84 + -1r = 51 + -84

Combine like terms: 84 + -84 = 0
0 + -1r = 51 + -84
-1r = 51 + -84

Combine like terms: 51 + -84 = -33
-1r = -33

Divide each side by '-1'.
r = 33

Simplifying
r = 33

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