12.66-4.2r=-6r+4.56

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Solution for 12.66-4.2r=-6r+4.56 equation: 


Simplifying
12.66 + -4.2r = -6r + 4.56

Reorder the terms:
12.66 + -4.2r = 4.56 + -6r

Solving
12.66 + -4.2r = 4.56 + -6r

Solving for variable 'r'.

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

Add '6r' to each side of the equation.
12.66 + -4.2r + 6r = 4.56 + -6r + 6r

Combine like terms: -4.2r + 6r = 1.8r
12.66 + 1.8r = 4.56 + -6r + 6r

Combine like terms: -6r + 6r = 0
12.66 + 1.8r = 4.56 + 0
12.66 + 1.8r = 4.56

Add '-12.66' to each side of the equation.
12.66 + -12.66 + 1.8r = 4.56 + -12.66

Combine like terms: 12.66 + -12.66 = 0.00
0.00 + 1.8r = 4.56 + -12.66
1.8r = 4.56 + -12.66

Combine like terms: 4.56 + -12.66 = -8.1
1.8r = -8.1

Divide each side by '1.8'.
r = -4.5

Simplifying
r = -4.5

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