115+100+2r+(r+25)=360

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Solution for 115+100+2r+(r+25)=360 equation: 


Simplifying
115 + 100 + 2r + (r + 25) = 360

Reorder the terms:
115 + 100 + 2r + (25 + r) = 360

Remove parenthesis around (25 + r)
115 + 100 + 2r + 25 + r = 360

Reorder the terms:
115 + 100 + 25 + 2r + r = 360

Combine like terms: 115 + 100 = 215
215 + 25 + 2r + r = 360

Combine like terms: 215 + 25 = 240
240 + 2r + r = 360

Combine like terms: 2r + r = 3r
240 + 3r = 360

Solving
240 + 3r = 360

Solving for variable 'r'.

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

Add '-240' to each side of the equation.
240 + -240 + 3r = 360 + -240

Combine like terms: 240 + -240 = 0
0 + 3r = 360 + -240
3r = 360 + -240

Combine like terms: 360 + -240 = 120
3r = 120

Divide each side by '3'.
r = 40

Simplifying
r = 40

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