-2(5r+4)=

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Solution for -2(5r+4)= equation: 


Simplifying
-2(5r + 4) = 0

Reorder the terms:
-2(4 + 5r) = 0
(4 * -2 + 5r * -2) = 0
(-8 + -10r) = 0

Solving
-8 + -10r = 0

Solving for variable 'r'.

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

Add '8' to each side of the equation.
-8 + 8 + -10r = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -10r = 0 + 8
-10r = 0 + 8

Combine like terms: 0 + 8 = 8
-10r = 8

Divide each side by '-10'.
r = -0.8

Simplifying
r = -0.8

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