2a-9(a+6)=6(a+3)-4a

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Solution for 2a-9(a+6)=6(a+3)-4a equation:


Simplifying
2a + -9(a + 6) = 6(a + 3) + -4a

Reorder the terms:
2a + -9(6 + a) = 6(a + 3) + -4a
2a + (6 * -9 + a * -9) = 6(a + 3) + -4a
2a + (-54 + -9a) = 6(a + 3) + -4a

Reorder the terms:
-54 + 2a + -9a = 6(a + 3) + -4a

Combine like terms: 2a + -9a = -7a
-54 + -7a = 6(a + 3) + -4a

Reorder the terms:
-54 + -7a = 6(3 + a) + -4a
-54 + -7a = (3 * 6 + a * 6) + -4a
-54 + -7a = (18 + 6a) + -4a

Combine like terms: 6a + -4a = 2a
-54 + -7a = 18 + 2a

Solving
-54 + -7a = 18 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
-54 + -7a + -2a = 18 + 2a + -2a

Combine like terms: -7a + -2a = -9a
-54 + -9a = 18 + 2a + -2a

Combine like terms: 2a + -2a = 0
-54 + -9a = 18 + 0
-54 + -9a = 18

Add '54' to each side of the equation.
-54 + 54 + -9a = 18 + 54

Combine like terms: -54 + 54 = 0
0 + -9a = 18 + 54
-9a = 18 + 54

Combine like terms: 18 + 54 = 72
-9a = 72

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

Simplifying
a = -8

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