-6.659(2.1r-7.2)=131.8482

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Solution for -6.659(2.1r-7.2)=131.8482 equation: 


Simplifying
-6.659(2.1r + -7.2) = 131.8482

Reorder the terms:
-6.659(-7.2 + 2.1r) = 131.8482
(-7.2 * -6.659 + 2.1r * -6.659) = 131.8482
(47.9448 + -13.9839r) = 131.8482

Solving
47.9448 + -13.9839r = 131.8482

Solving for variable 'r'.

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

Add '-47.9448' to each side of the equation.
47.9448 + -47.9448 + -13.9839r = 131.8482 + -47.9448

Combine like terms: 47.9448 + -47.9448 = 0.0000
0.0000 + -13.9839r = 131.8482 + -47.9448
-13.9839r = 131.8482 + -47.9448

Combine like terms: 131.8482 + -47.9448 = 83.9034
-13.9839r = 83.9034

Divide each side by '-13.9839'.
r = -6

Simplifying
r = -6

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