775=-5-20r

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Solution for 775=-5-20r equation:


Simplifying
775 = -5 + -20r

Solving
775 = -5 + -20r

Solving for variable 'r'.

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

Add '20r' to each side of the equation.
775 + 20r = -5 + -20r + 20r

Combine like terms: -20r + 20r = 0
775 + 20r = -5 + 0
775 + 20r = -5

Add '-775' to each side of the equation.
775 + -775 + 20r = -5 + -775

Combine like terms: 775 + -775 = 0
0 + 20r = -5 + -775
20r = -5 + -775

Combine like terms: -5 + -775 = -780
20r = -780

Divide each side by '20'.
r = -39

Simplifying
r = -39

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