-(8-9a)-(20+8a)-18=-(6-7a)+(-a)+5

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Solution for -(8-9a)-(20+8a)-18=-(6-7a)+(-a)+5 equation:


Simplifying
-1(8 + -9a) + -1(20 + 8a) + -18 = -1(6 + -7a) + (-1a) + 5
(8 * -1 + -9a * -1) + -1(20 + 8a) + -18 = -1(6 + -7a) + (-1a) + 5
(-8 + 9a) + -1(20 + 8a) + -18 = -1(6 + -7a) + (-1a) + 5
-8 + 9a + (20 * -1 + 8a * -1) + -18 = -1(6 + -7a) + (-1a) + 5
-8 + 9a + (-20 + -8a) + -18 = -1(6 + -7a) + (-1a) + 5

Reorder the terms:
-8 + -20 + -18 + 9a + -8a = -1(6 + -7a) + (-1a) + 5

Combine like terms: -8 + -20 = -28
-28 + -18 + 9a + -8a = -1(6 + -7a) + (-1a) + 5

Combine like terms: -28 + -18 = -46
-46 + 9a + -8a = -1(6 + -7a) + (-1a) + 5

Combine like terms: 9a + -8a = 1a
-46 + 1a = -1(6 + -7a) + (-1a) + 5
-46 + 1a = (6 * -1 + -7a * -1) + (-1a) + 5
-46 + 1a = (-6 + 7a) + (-1a) + 5

Reorder the terms:
-46 + 1a = -6 + 5 + 7a + (-1a)

Combine like terms: -6 + 5 = -1
-46 + 1a = -1 + 7a + (-1a)

Combine like terms: 7a + (-1a) = 6a
-46 + 1a = -1 + 6a

Solving
-46 + 1a = -1 + 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.
-46 + 1a + -6a = -1 + 6a + -6a

Combine like terms: 1a + -6a = -5a
-46 + -5a = -1 + 6a + -6a

Combine like terms: 6a + -6a = 0
-46 + -5a = -1 + 0
-46 + -5a = -1

Add '46' to each side of the equation.
-46 + 46 + -5a = -1 + 46

Combine like terms: -46 + 46 = 0
0 + -5a = -1 + 46
-5a = -1 + 46

Combine like terms: -1 + 46 = 45
-5a = 45

Divide each side by '-5'.
a = -9

Simplifying
a = -9

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