-5r-4-5r=16

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Solution for -5r-4-5r=16 equation: 


Simplifying
-5r + -4 + -5r = 16

Reorder the terms:
-4 + -5r + -5r = 16

Combine like terms: -5r + -5r = -10r
-4 + -10r = 16

Solving
-4 + -10r = 16

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + -10r = 16 + 4

Combine like terms: -4 + 4 = 0
0 + -10r = 16 + 4
-10r = 16 + 4

Combine like terms: 16 + 4 = 20
-10r = 20

Divide each side by '-10'.
r = -2

Simplifying
r = -2

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