2(-3a+9)-6(2a-5)-3(a+2)=0

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Solution for 2(-3a+9)-6(2a-5)-3(a+2)=0 equation:


Simplifying
2(-3a + 9) + -6(2a + -5) + -3(a + 2) = 0

Reorder the terms:
2(9 + -3a) + -6(2a + -5) + -3(a + 2) = 0
(9 * 2 + -3a * 2) + -6(2a + -5) + -3(a + 2) = 0
(18 + -6a) + -6(2a + -5) + -3(a + 2) = 0

Reorder the terms:
18 + -6a + -6(-5 + 2a) + -3(a + 2) = 0
18 + -6a + (-5 * -6 + 2a * -6) + -3(a + 2) = 0
18 + -6a + (30 + -12a) + -3(a + 2) = 0

Reorder the terms:
18 + -6a + 30 + -12a + -3(2 + a) = 0
18 + -6a + 30 + -12a + (2 * -3 + a * -3) = 0
18 + -6a + 30 + -12a + (-6 + -3a) = 0

Reorder the terms:
18 + 30 + -6 + -6a + -12a + -3a = 0

Combine like terms: 18 + 30 = 48
48 + -6 + -6a + -12a + -3a = 0

Combine like terms: 48 + -6 = 42
42 + -6a + -12a + -3a = 0

Combine like terms: -6a + -12a = -18a
42 + -18a + -3a = 0

Combine like terms: -18a + -3a = -21a
42 + -21a = 0

Solving
42 + -21a = 0

Solving for variable 'a'.

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

Add '-42' to each side of the equation.
42 + -42 + -21a = 0 + -42

Combine like terms: 42 + -42 = 0
0 + -21a = 0 + -42
-21a = 0 + -42

Combine like terms: 0 + -42 = -42
-21a = -42

Divide each side by '-21'.
a = 2

Simplifying
a = 2

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