3r-7=-1

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Solution for 3r-7=-1 equation: 


Simplifying
3r + -7 = -1

Reorder the terms:
-7 + 3r = -1

Solving
-7 + 3r = -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 + 3r = -1 + 7

Combine like terms: -7 + 7 = 0
0 + 3r = -1 + 7
3r = -1 + 7

Combine like terms: -1 + 7 = 6
3r = 6

Divide each side by '3'.
r = 2

Simplifying
r = 2

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