20-2o=o-7

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Solution for 20-2o=o-7 equation:


Simplifying
20 + -2o = o + -7

Reorder the terms:
20 + -2o = -7 + o

Solving
20 + -2o = -7 + o

Solving for variable 'o'.

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

Add '-1o' to each side of the equation.
20 + -2o + -1o = -7 + o + -1o

Combine like terms: -2o + -1o = -3o
20 + -3o = -7 + o + -1o

Combine like terms: o + -1o = 0
20 + -3o = -7 + 0
20 + -3o = -7

Add '-20' to each side of the equation.
20 + -20 + -3o = -7 + -20

Combine like terms: 20 + -20 = 0
0 + -3o = -7 + -20
-3o = -7 + -20

Combine like terms: -7 + -20 = -27
-3o = -27

Divide each side by '-3'.
o = 9

Simplifying
o = 9

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