3a+5b=9

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Solution for 3a+5b=9 equation: 


Simplifying
3a + 5b = 9

Solving
3a + 5b = 9

Solving for variable 'a'.

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

Add '-5b' to each side of the equation.
3a + 5b + -5b = 9 + -5b

Combine like terms: 5b + -5b = 0
3a + 0 = 9 + -5b
3a = 9 + -5b

Divide each side by '3'.
a = 3 + -1.666666667b

Simplifying
a = 3 + -1.666666667b

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