3(3a-4)=-84

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Solution for 3(3a-4)=-84 equation:


Simplifying
3(3a + -4) = -84

Reorder the terms:
3(-4 + 3a) = -84
(-4 * 3 + 3a * 3) = -84
(-12 + 9a) = -84

Solving
-12 + 9a = -84

Solving for variable 'a'.

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

Add '12' to each side of the equation.
-12 + 12 + 9a = -84 + 12

Combine like terms: -12 + 12 = 0
0 + 9a = -84 + 12
9a = -84 + 12

Combine like terms: -84 + 12 = -72
9a = -72

Divide each side by '9'.
a = -8

Simplifying
a = -8

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