54=-6(3a-4)-3(7a+3)

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Solution for 54=-6(3a-4)-3(7a+3) equation:


Simplifying
54 = -6(3a + -4) + -3(7a + 3)

Reorder the terms:
54 = -6(-4 + 3a) + -3(7a + 3)
54 = (-4 * -6 + 3a * -6) + -3(7a + 3)
54 = (24 + -18a) + -3(7a + 3)

Reorder the terms:
54 = 24 + -18a + -3(3 + 7a)
54 = 24 + -18a + (3 * -3 + 7a * -3)
54 = 24 + -18a + (-9 + -21a)

Reorder the terms:
54 = 24 + -9 + -18a + -21a

Combine like terms: 24 + -9 = 15
54 = 15 + -18a + -21a

Combine like terms: -18a + -21a = -39a
54 = 15 + -39a

Solving
54 = 15 + -39a

Solving for variable 'a'.

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

Add '39a' to each side of the equation.
54 + 39a = 15 + -39a + 39a

Combine like terms: -39a + 39a = 0
54 + 39a = 15 + 0
54 + 39a = 15

Add '-54' to each side of the equation.
54 + -54 + 39a = 15 + -54

Combine like terms: 54 + -54 = 0
0 + 39a = 15 + -54
39a = 15 + -54

Combine like terms: 15 + -54 = -39
39a = -39

Divide each side by '39'.
a = -1

Simplifying
a = -1

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