19=r+4

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Solution for 19=r+4 equation:


Simplifying
19 = r + 4

Reorder the terms:
19 = 4 + r

Solving
19 = 4 + 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.
19 + -1r = 4 + r + -1r

Combine like terms: r + -1r = 0
19 + -1r = 4 + 0
19 + -1r = 4

Add '-19' to each side of the equation.
19 + -19 + -1r = 4 + -19

Combine like terms: 19 + -19 = 0
0 + -1r = 4 + -19
-1r = 4 + -19

Combine like terms: 4 + -19 = -15
-1r = -15

Divide each side by '-1'.
r = 15

Simplifying
r = 15

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