3r+3-1=-7

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Solution for 3r+3-1=-7 equation: 


Simplifying
3r + 3 + -1 = -7

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

Combine like terms: 3 + -1 = 2
2 + 3r = -7

Solving
2 + 3r = -7

Solving for variable 'r'.

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

Add '-2' to each side of the equation.
2 + -2 + 3r = -7 + -2

Combine like terms: 2 + -2 = 0
0 + 3r = -7 + -2
3r = -7 + -2

Combine like terms: -7 + -2 = -9
3r = -9

Divide each side by '3'.
r = -3

Simplifying
r = -3

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