3r+13=r-11

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Solution for 3r+13=r-11 equation:


Simplifying
3r + 13 = r + -11

Reorder the terms:
13 + 3r = r + -11

Reorder the terms:
13 + 3r = -11 + r

Solving
13 + 3r = -11 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
13 + 3r + -1r = -11 + r + -1r

Combine like terms: 3r + -1r = 2r
13 + 2r = -11 + r + -1r

Combine like terms: r + -1r = 0
13 + 2r = -11 + 0
13 + 2r = -11

Add '-13' to each side of the equation.
13 + -13 + 2r = -11 + -13

Combine like terms: 13 + -13 = 0
0 + 2r = -11 + -13
2r = -11 + -13

Combine like terms: -11 + -13 = -24
2r = -24

Divide each side by '2'.
r = -12

Simplifying
r = -12

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