-1(4+9r)+9r=

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Solution for -1(4+9r)+9r= equation: 


Simplifying
-1(4 + 9r) + 9r = 0
(4 * -1 + 9r * -1) + 9r = 0
(-4 + -9r) + 9r = 0

Combine like terms: -9r + 9r = 0
-4 + 0 = 0
-4 = 0

Solving
-4 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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