5(r-120)+5r=3600

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Solution for 5(r-120)+5r=3600 equation: 


Simplifying
5(r + -120) + 5r = 3600

Reorder the terms:
5(-120 + r) + 5r = 3600
(-120 * 5 + r * 5) + 5r = 3600
(-600 + 5r) + 5r = 3600

Combine like terms: 5r + 5r = 10r
-600 + 10r = 3600

Solving
-600 + 10r = 3600

Solving for variable 'r'.

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

Add '600' to each side of the equation.
-600 + 600 + 10r = 3600 + 600

Combine like terms: -600 + 600 = 0
0 + 10r = 3600 + 600
10r = 3600 + 600

Combine like terms: 3600 + 600 = 4200
10r = 4200

Divide each side by '10'.
r = 420

Simplifying
r = 420

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