-9(4+r)=36

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Solution for -9(4+r)=36 equation: 


Simplifying
-9(4 + r) = 36
(4 * -9 + r * -9) = 36
(-36 + -9r) = 36

Solving
-36 + -9r = 36

Solving for variable 'r'.

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

Add '36' to each side of the equation.
-36 + 36 + -9r = 36 + 36

Combine like terms: -36 + 36 = 0
0 + -9r = 36 + 36
-9r = 36 + 36

Combine like terms: 36 + 36 = 72
-9r = 72

Divide each side by '-9'.
r = -8

Simplifying
r = -8

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