2b+2a=9b

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Solution for 2b+2a=9b equation: 


Simplifying
2b + 2a = 9b

Reorder the terms:
2a + 2b = 9b

Solving
2a + 2b = 9b

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 = 9b + -2b

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

Combine like terms: 9b + -2b = 7b
2a = 7b

Divide each side by '2'.
a = 3.5b

Simplifying
a = 3.5b

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