-4(r+r)=-63

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Solution for -4(r+r)=-63 equation: 


Simplifying
-4(r + r) = -63

Combine like terms: r + r = 2r
-4(2r) = -63

Remove parenthesis around (2r)
-4 * 2r = -63

Multiply -4 * 2
-8r = -63

Solving
-8r = -63

Solving for variable 'r'.

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

Divide each side by '-8'.
r = 7.875

Simplifying
r = 7.875

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