r-7=-1

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Solution for r-7=-1 equation: 


Simplifying
r + -7 = -1

Reorder the terms:
-7 + r = -1

Solving
-7 + r = -1

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 = -1 + 7

Combine like terms: -7 + 7 = 0
0 + r = -1 + 7
r = -1 + 7

Combine like terms: -1 + 7 = 6
r = 6

Simplifying
r = 6

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