3a+9b=30

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Solution for 3a+9b=30 equation: 


Simplifying
3a + 9b = 30

Solving
3a + 9b = 30

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.
3a + 9b + -9b = 30 + -9b

Combine like terms: 9b + -9b = 0
3a + 0 = 30 + -9b
3a = 30 + -9b

Divide each side by '3'.
a = 10 + -3b

Simplifying
a = 10 + -3b

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