-(a-1)=-3-2(3a+3)

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Solution for -(a-1)=-3-2(3a+3) equation:


Simplifying
-1(a + -1) = -3 + -2(3a + 3)

Reorder the terms:
-1(-1 + a) = -3 + -2(3a + 3)
(-1 * -1 + a * -1) = -3 + -2(3a + 3)
(1 + -1a) = -3 + -2(3a + 3)

Reorder the terms:
1 + -1a = -3 + -2(3 + 3a)
1 + -1a = -3 + (3 * -2 + 3a * -2)
1 + -1a = -3 + (-6 + -6a)

Combine like terms: -3 + -6 = -9
1 + -1a = -9 + -6a

Solving
1 + -1a = -9 + -6a

Solving for variable 'a'.

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

Add '6a' to each side of the equation.
1 + -1a + 6a = -9 + -6a + 6a

Combine like terms: -1a + 6a = 5a
1 + 5a = -9 + -6a + 6a

Combine like terms: -6a + 6a = 0
1 + 5a = -9 + 0
1 + 5a = -9

Add '-1' to each side of the equation.
1 + -1 + 5a = -9 + -1

Combine like terms: 1 + -1 = 0
0 + 5a = -9 + -1
5a = -9 + -1

Combine like terms: -9 + -1 = -10
5a = -10

Divide each side by '5'.
a = -2

Simplifying
a = -2

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