-3(2a+7b)=

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Solution for -3(2a+7b)= equation: 


Simplifying
-3(2a + 7b) = 0
(2a * -3 + 7b * -3) = 0
(-6a + -21b) = 0

Solving
-6a + -21b = 0

Solving for variable 'a'.

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

Add '21b' to each side of the equation.
-6a + -21b + 21b = 0 + 21b

Combine like terms: -21b + 21b = 0
-6a + 0 = 0 + 21b
-6a = 0 + 21b
Remove the zero:
-6a = 21b

Divide each side by '-6'.
a = -3.5b

Simplifying
a = -3.5b

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