o+30=20

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Solution for o+30=20 equation: 


Simplifying
o + 30 = 20

Reorder the terms:
30 + o = 20

Solving
30 + o = 20

Solving for variable 'o'.

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

Add '-30' to each side of the equation.
30 + -30 + o = 20 + -30

Combine like terms: 30 + -30 = 0
0 + o = 20 + -30
o = 20 + -30

Combine like terms: 20 + -30 = -10
o = -10

Simplifying
o = -10

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