2a+b+3b=

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Solution for 2a+b+3b= equation: 


Simplifying
2a + b + 3b = 0

Combine like terms: b + 3b = 4b
2a + 4b = 0

Solving
2a + 4b = 0

Solving for variable 'a'.

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

Add '-4b' to each side of the equation.
2a + 4b + -4b = 0 + -4b

Combine like terms: 4b + -4b = 0
2a + 0 = 0 + -4b
2a = 0 + -4b
Remove the zero:
2a = -4b

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

Simplifying
a = -2b

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