19-12+6r-2r=19

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Solution for 19-12+6r-2r=19 equation:


Simplifying
19 + -12 + 6r + -2r = 19

Combine like terms: 19 + -12 = 7
7 + 6r + -2r = 19

Combine like terms: 6r + -2r = 4r
7 + 4r = 19

Solving
7 + 4r = 19

Solving for variable 'r'.

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

Add '-7' to each side of the equation.
7 + -7 + 4r = 19 + -7

Combine like terms: 7 + -7 = 0
0 + 4r = 19 + -7
4r = 19 + -7

Combine like terms: 19 + -7 = 12
4r = 12

Divide each side by '4'.
r = 3

Simplifying
r = 3

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