10r+60=40r-120

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Solution for 10r+60=40r-120 equation:


Simplifying
10r + 60 = 40r + -120

Reorder the terms:
60 + 10r = 40r + -120

Reorder the terms:
60 + 10r = -120 + 40r

Solving
60 + 10r = -120 + 40r

Solving for variable 'r'.

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

Add '-40r' to each side of the equation.
60 + 10r + -40r = -120 + 40r + -40r

Combine like terms: 10r + -40r = -30r
60 + -30r = -120 + 40r + -40r

Combine like terms: 40r + -40r = 0
60 + -30r = -120 + 0
60 + -30r = -120

Add '-60' to each side of the equation.
60 + -60 + -30r = -120 + -60

Combine like terms: 60 + -60 = 0
0 + -30r = -120 + -60
-30r = -120 + -60

Combine like terms: -120 + -60 = -180
-30r = -180

Divide each side by '-30'.
r = 6

Simplifying
r = 6

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