-2(8-3.5r)=-25.5

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Solution for -2(8-3.5r)=-25.5 equation: 


Simplifying
-2(8 + -3.5r) = -25.5
(8 * -2 + -3.5r * -2) = -25.5
(-16 + 7r) = -25.5

Solving
-16 + 7r = -25.5

Solving for variable 'r'.

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

Add '16' to each side of the equation.
-16 + 16 + 7r = -25.5 + 16

Combine like terms: -16 + 16 = 0
0 + 7r = -25.5 + 16
7r = -25.5 + 16

Combine like terms: -25.5 + 16 = -9.5
7r = -9.5

Divide each side by '7'.
r = -1.357142857

Simplifying
r = -1.357142857

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