a+9b=23

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Solution for a+9b=23 equation: 


Simplifying
a + 9b = 23

Solving
a + 9b = 23

Solving for variable 'a'.

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

Add '-9b' to each side of the equation.
a + 9b + -9b = 23 + -9b

Combine like terms: 9b + -9b = 0
a + 0 = 23 + -9b
a = 23 + -9b

Simplifying
a = 23 + -9b

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