-6.5-6=3.5r+9

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Solution for -6.5-6=3.5r+9 equation: 


Simplifying
-6.5 + -6 = 3.5r + 9

Combine like terms: -6.5 + -6 = -12.5
-12.5 = 3.5r + 9

Reorder the terms:
-12.5 = 9 + 3.5r

Solving
-12.5 = 9 + 3.5r

Solving for variable 'r'.

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

Add '-3.5r' to each side of the equation.
-12.5 + -3.5r = 9 + 3.5r + -3.5r

Combine like terms: 3.5r + -3.5r = 0.0
-12.5 + -3.5r = 9 + 0.0
-12.5 + -3.5r = 9

Add '12.5' to each side of the equation.
-12.5 + 12.5 + -3.5r = 9 + 12.5

Combine like terms: -12.5 + 12.5 = 0.0
0.0 + -3.5r = 9 + 12.5
-3.5r = 9 + 12.5

Combine like terms: 9 + 12.5 = 21.5
-3.5r = 21.5

Divide each side by '-3.5'.
r = -6.142857143

Simplifying
r = -6.142857143

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