-12=-3(3a+1)

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Solution for -12=-3(3a+1) equation:


Simplifying
-12 = -3(3a + 1)

Reorder the terms:
-12 = -3(1 + 3a)
-12 = (1 * -3 + 3a * -3)
-12 = (-3 + -9a)

Solving
-12 = -3 + -9a

Solving for variable 'a'.

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

Add '9a' to each side of the equation.
-12 + 9a = -3 + -9a + 9a

Combine like terms: -9a + 9a = 0
-12 + 9a = -3 + 0
-12 + 9a = -3

Add '12' to each side of the equation.
-12 + 12 + 9a = -3 + 12

Combine like terms: -12 + 12 = 0
0 + 9a = -3 + 12
9a = -3 + 12

Combine like terms: -3 + 12 = 9
9a = 9

Divide each side by '9'.
a = 1

Simplifying
a = 1

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