13r+12-6r=-30

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Solution for 13r+12-6r=-30 equation:


Simplifying
13r + 12 + -6r = -30

Reorder the terms:
12 + 13r + -6r = -30

Combine like terms: 13r + -6r = 7r
12 + 7r = -30

Solving
12 + 7r = -30

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -12 + 7r = -30 + -12

Combine like terms: 12 + -12 = 0
0 + 7r = -30 + -12
7r = -30 + -12

Combine like terms: -30 + -12 = -42
7r = -42

Divide each side by '7'.
r = -6

Simplifying
r = -6

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