r+7=0

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Solution for r+7=0 equation: 


Simplifying
r + 7 = 0

Reorder the terms:
7 + r = 0

Solving
7 + r = 0

Solving for variable 'r'.

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

Add '-7' to each side of the equation.
7 + -7 + r = 0 + -7

Combine like terms: 7 + -7 = 0
0 + r = 0 + -7
r = 0 + -7

Combine like terms: 0 + -7 = -7
r = -7

Simplifying
r = -7

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