57=-3r

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Solution for 57=-3r equation:


Simplifying
57 = -3r

Solving
57 = -3r

Solving for variable 'r'.

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

Add '3r' to each side of the equation.
57 + 3r = -3r + 3r

Combine like terms: -3r + 3r = 0
57 + 3r = 0

Add '-57' to each side of the equation.
57 + -57 + 3r = 0 + -57

Combine like terms: 57 + -57 = 0
0 + 3r = 0 + -57
3r = 0 + -57

Combine like terms: 0 + -57 = -57
3r = -57

Divide each side by '3'.
r = -19

Simplifying
r = -19

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