12r-19=4r+13

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Solution for 12r-19=4r+13 equation:


Simplifying
12r + -19 = 4r + 13

Reorder the terms:
-19 + 12r = 4r + 13

Reorder the terms:
-19 + 12r = 13 + 4r

Solving
-19 + 12r = 13 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
-19 + 12r + -4r = 13 + 4r + -4r

Combine like terms: 12r + -4r = 8r
-19 + 8r = 13 + 4r + -4r

Combine like terms: 4r + -4r = 0
-19 + 8r = 13 + 0
-19 + 8r = 13

Add '19' to each side of the equation.
-19 + 19 + 8r = 13 + 19

Combine like terms: -19 + 19 = 0
0 + 8r = 13 + 19
8r = 13 + 19

Combine like terms: 13 + 19 = 32
8r = 32

Divide each side by '8'.
r = 4

Simplifying
r = 4

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