-6.5-7r=-1.25r-.25(-9r-2)

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Solution for -6.5-7r=-1.25r-.25(-9r-2) equation:


Simplifying
-6.5 + -7r = -1.25r + -0.25(-9r + -2)

Reorder the terms:
-6.5 + -7r = -1.25r + -0.25(-2 + -9r)
-6.5 + -7r = -1.25r + (-2 * -0.25 + -9r * -0.25)
-6.5 + -7r = -1.25r + (0.5 + 2.25r)

Reorder the terms:
-6.5 + -7r = 0.5 + -1.25r + 2.25r

Combine like terms: -1.25r + 2.25r = 1r
-6.5 + -7r = 0.5 + 1r

Solving
-6.5 + -7r = 0.5 + 1r

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.
-6.5 + -7r + -1r = 0.5 + 1r + -1r

Combine like terms: -7r + -1r = -8r
-6.5 + -8r = 0.5 + 1r + -1r

Combine like terms: 1r + -1r = 0
-6.5 + -8r = 0.5 + 0
-6.5 + -8r = 0.5

Add '6.5' to each side of the equation.
-6.5 + 6.5 + -8r = 0.5 + 6.5

Combine like terms: -6.5 + 6.5 = 0.0
0.0 + -8r = 0.5 + 6.5
-8r = 0.5 + 6.5

Combine like terms: 0.5 + 6.5 = 7
-8r = 7

Divide each side by '-8'.
r = -0.875

Simplifying
r = -0.875

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