123=19r-15

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Solution for 123=19r-15 equation:


Simplifying
123 = 19r + -15

Reorder the terms:
123 = -15 + 19r

Solving
123 = -15 + 19r

Solving for variable 'r'.

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

Add '-19r' to each side of the equation.
123 + -19r = -15 + 19r + -19r

Combine like terms: 19r + -19r = 0
123 + -19r = -15 + 0
123 + -19r = -15

Add '-123' to each side of the equation.
123 + -123 + -19r = -15 + -123

Combine like terms: 123 + -123 = 0
0 + -19r = -15 + -123
-19r = -15 + -123

Combine like terms: -15 + -123 = -138
-19r = -138

Divide each side by '-19'.
r = 7.263157895

Simplifying
r = 7.263157895

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