1=r-12

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Solution for 1=r-12 equation:


Simplifying
1 = r + -12

Reorder the terms:
1 = -12 + r

Solving
1 = -12 + 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.
1 + -1r = -12 + r + -1r

Combine like terms: r + -1r = 0
1 + -1r = -12 + 0
1 + -1r = -12

Add '-1' to each side of the equation.
1 + -1 + -1r = -12 + -1

Combine like terms: 1 + -1 = 0
0 + -1r = -12 + -1
-1r = -12 + -1

Combine like terms: -12 + -1 = -13
-1r = -13

Divide each side by '-1'.
r = 13

Simplifying
r = 13

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