-3a-6(a-5)=84

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Solution for -3a-6(a-5)=84 equation:


Simplifying
-3a + -6(a + -5) = 84

Reorder the terms:
-3a + -6(-5 + a) = 84
-3a + (-5 * -6 + a * -6) = 84
-3a + (30 + -6a) = 84

Reorder the terms:
30 + -3a + -6a = 84

Combine like terms: -3a + -6a = -9a
30 + -9a = 84

Solving
30 + -9a = 84

Solving for variable 'a'.

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

Add '-30' to each side of the equation.
30 + -30 + -9a = 84 + -30

Combine like terms: 30 + -30 = 0
0 + -9a = 84 + -30
-9a = 84 + -30

Combine like terms: 84 + -30 = 54
-9a = 54

Divide each side by '-9'.
a = -6

Simplifying
a = -6

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