R+8+4=19

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Solution for R+8+4=19 equation: 


Simplifying
R + 8 + 4 = 19

Reorder the terms:
8 + 4 + R = 19

Combine like terms: 8 + 4 = 12
12 + R = 19

Solving
12 + R = 19

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 + R = 19 + -12

Combine like terms: 12 + -12 = 0
0 + R = 19 + -12
R = 19 + -12

Combine like terms: 19 + -12 = 7
R = 7

Simplifying
R = 7

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