(4r+28)+(11r+13)=180

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Solution for (4r+28)+(11r+13)=180 equation: 


Simplifying
(4r + 28) + (11r + 13) = 180

Reorder the terms:
(28 + 4r) + (11r + 13) = 180

Remove parenthesis around (28 + 4r)
28 + 4r + (11r + 13) = 180

Reorder the terms:
28 + 4r + (13 + 11r) = 180

Remove parenthesis around (13 + 11r)
28 + 4r + 13 + 11r = 180

Reorder the terms:
28 + 13 + 4r + 11r = 180

Combine like terms: 28 + 13 = 41
41 + 4r + 11r = 180

Combine like terms: 4r + 11r = 15r
41 + 15r = 180

Solving
41 + 15r = 180

Solving for variable 'r'.

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

Add '-41' to each side of the equation.
41 + -41 + 15r = 180 + -41

Combine like terms: 41 + -41 = 0
0 + 15r = 180 + -41
15r = 180 + -41

Combine like terms: 180 + -41 = 139
15r = 139

Divide each side by '15'.
r = 9.266666667

Simplifying
r = 9.266666667

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