2(a+b)=9n

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Solution for 2(a+b)=9n equation: 


Simplifying
2(a + b) = 9n
(a * 2 + b * 2) = 9n
(2a + 2b) = 9n

Solving
2a + 2b = 9n

Solving for variable 'a'.

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

Add '-2b' to each side of the equation.
2a + 2b + -2b = -2b + 9n

Combine like terms: 2b + -2b = 0
2a + 0 = -2b + 9n
2a = -2b + 9n

Divide each side by '2'.
a = -1b + 4.5n

Simplifying
a = -1b + 4.5n

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