-20=-3+r

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Solution for -20=-3+r equation:


Simplifying
-20 = -3 + r

Solving
-20 = -3 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
-20 + -1r = -3 + r + -1r

Combine like terms: r + -1r = 0
-20 + -1r = -3 + 0
-20 + -1r = -3

Add '20' to each side of the equation.
-20 + 20 + -1r = -3 + 20

Combine like terms: -20 + 20 = 0
0 + -1r = -3 + 20
-1r = -3 + 20

Combine like terms: -3 + 20 = 17
-1r = 17

Divide each side by '-1'.
r = -17

Simplifying
r = -17

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