90=89+o

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Solution for 90=89+o equation: 


Simplifying
90 = 89 + o

Solving
90 = 89 + 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.
90 + -1o = 89 + o + -1o

Combine like terms: o + -1o = 0
90 + -1o = 89 + 0
90 + -1o = 89

Add '-90' to each side of the equation.
90 + -90 + -1o = 89 + -90

Combine like terms: 90 + -90 = 0
0 + -1o = 89 + -90
-1o = 89 + -90

Combine like terms: 89 + -90 = -1
-1o = -1

Divide each side by '-1'.
o = 1

Simplifying
o = 1

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