r+3+3=7r+12

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Solution for r+3+3=7r+12 equation:


Simplifying
r + 3 + 3 = 7r + 12

Reorder the terms:
3 + 3 + r = 7r + 12

Combine like terms: 3 + 3 = 6
6 + r = 7r + 12

Reorder the terms:
6 + r = 12 + 7r

Solving
6 + r = 12 + 7r

Solving for variable 'r'.

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

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

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

Combine like terms: 7r + -7r = 0
6 + -6r = 12 + 0
6 + -6r = 12

Add '-6' to each side of the equation.
6 + -6 + -6r = 12 + -6

Combine like terms: 6 + -6 = 0
0 + -6r = 12 + -6
-6r = 12 + -6

Combine like terms: 12 + -6 = 6
-6r = 6

Divide each side by '-6'.
r = -1

Simplifying
r = -1

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