-12a+8(a+3)=-9a-4(3a+11)

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Solution for -12a+8(a+3)=-9a-4(3a+11) equation:


Simplifying
-12a + 8(a + 3) = -9a + -4(3a + 11)

Reorder the terms:
-12a + 8(3 + a) = -9a + -4(3a + 11)
-12a + (3 * 8 + a * 8) = -9a + -4(3a + 11)
-12a + (24 + 8a) = -9a + -4(3a + 11)

Reorder the terms:
24 + -12a + 8a = -9a + -4(3a + 11)

Combine like terms: -12a + 8a = -4a
24 + -4a = -9a + -4(3a + 11)

Reorder the terms:
24 + -4a = -9a + -4(11 + 3a)
24 + -4a = -9a + (11 * -4 + 3a * -4)
24 + -4a = -9a + (-44 + -12a)

Reorder the terms:
24 + -4a = -44 + -9a + -12a

Combine like terms: -9a + -12a = -21a
24 + -4a = -44 + -21a

Solving
24 + -4a = -44 + -21a

Solving for variable 'a'.

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

Add '21a' to each side of the equation.
24 + -4a + 21a = -44 + -21a + 21a

Combine like terms: -4a + 21a = 17a
24 + 17a = -44 + -21a + 21a

Combine like terms: -21a + 21a = 0
24 + 17a = -44 + 0
24 + 17a = -44

Add '-24' to each side of the equation.
24 + -24 + 17a = -44 + -24

Combine like terms: 24 + -24 = 0
0 + 17a = -44 + -24
17a = -44 + -24

Combine like terms: -44 + -24 = -68
17a = -68

Divide each side by '17'.
a = -4

Simplifying
a = -4

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