-5-6(6+4r)=-4r-21

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Solution for -5-6(6+4r)=-4r-21 equation: 


Simplifying
-5 + -6(6 + 4r) = -4r + -21
-5 + (6 * -6 + 4r * -6) = -4r + -21
-5 + (-36 + -24r) = -4r + -21

Combine like terms: -5 + -36 = -41
-41 + -24r = -4r + -21

Reorder the terms:
-41 + -24r = -21 + -4r

Solving
-41 + -24r = -21 + -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
-41 + -24r + 4r = -21 + -4r + 4r

Combine like terms: -24r + 4r = -20r
-41 + -20r = -21 + -4r + 4r

Combine like terms: -4r + 4r = 0
-41 + -20r = -21 + 0
-41 + -20r = -21

Add '41' to each side of the equation.
-41 + 41 + -20r = -21 + 41

Combine like terms: -41 + 41 = 0
0 + -20r = -21 + 41
-20r = -21 + 41

Combine like terms: -21 + 41 = 20
-20r = 20

Divide each side by '-20'.
r = -1

Simplifying
r = -1

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