18-6a=4a-4(a+-3)

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Solution for 18-6a=4a-4(a+-3) equation: 


Simplifying
18 + -6a = 4a + -4(a + -3)

Reorder the terms:
18 + -6a = 4a + -4(-3 + a)
18 + -6a = 4a + (-3 * -4 + a * -4)
18 + -6a = 4a + (12 + -4a)

Reorder the terms:
18 + -6a = 12 + 4a + -4a

Combine like terms: 4a + -4a = 0
18 + -6a = 12 + 0
18 + -6a = 12

Solving
18 + -6a = 12

Solving for variable 'a'.

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

Add '-18' to each side of the equation.
18 + -18 + -6a = 12 + -18

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

Combine like terms: 12 + -18 = -6
-6a = -6

Divide each side by '-6'.
a = 1

Simplifying
a = 1

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