-3(a+b)=

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Solution for -3(a+b)= equation: 


Simplifying
-3(a + b) = 0
(a * -3 + b * -3) = 0
(-3a + -3b) = 0

Solving
-3a + -3b = 0

Solving for variable 'a'.

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

Add '3b' to each side of the equation.
-3a + -3b + 3b = 0 + 3b

Combine like terms: -3b + 3b = 0
-3a + 0 = 0 + 3b
-3a = 0 + 3b
Remove the zero:
-3a = 3b

Divide each side by '-3'.
a = -1b

Simplifying
a = -1b

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