8x-r=12x

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Solution for 8x-r=12x equation:


Simplifying
8x + -1r = 12x

Reorder the terms:
-1r + 8x = 12x

Solving
-1r + 8x = 12x

Solving for variable 'r'.

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

Add '-8x' to each side of the equation.
-1r + 8x + -8x = 12x + -8x

Combine like terms: 8x + -8x = 0
-1r + 0 = 12x + -8x
-1r = 12x + -8x

Combine like terms: 12x + -8x = 4x
-1r = 4x

Divide each side by '-1'.
r = -4x

Simplifying
r = -4x

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