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

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


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

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

Combine like terms: -8 + -9 = -17
-17 + -20 + 7a + -6a = -1(7 + -6a) + (-1a) + 6

Combine like terms: -17 + -20 = -37
-37 + 7a + -6a = -1(7 + -6a) + (-1a) + 6

Combine like terms: 7a + -6a = 1a
-37 + 1a = -1(7 + -6a) + (-1a) + 6
-37 + 1a = (7 * -1 + -6a * -1) + (-1a) + 6
-37 + 1a = (-7 + 6a) + (-1a) + 6

Reorder the terms:
-37 + 1a = -7 + 6 + 6a + (-1a)

Combine like terms: -7 + 6 = -1
-37 + 1a = -1 + 6a + (-1a)

Combine like terms: 6a + (-1a) = 5a
-37 + 1a = -1 + 5a

Solving
-37 + 1a = -1 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
-37 + 1a + -5a = -1 + 5a + -5a

Combine like terms: 1a + -5a = -4a
-37 + -4a = -1 + 5a + -5a

Combine like terms: 5a + -5a = 0
-37 + -4a = -1 + 0
-37 + -4a = -1

Add '37' to each side of the equation.
-37 + 37 + -4a = -1 + 37

Combine like terms: -37 + 37 = 0
0 + -4a = -1 + 37
-4a = -1 + 37

Combine like terms: -1 + 37 = 36
-4a = 36

Divide each side by '-4'.
a = -9

Simplifying
a = -9

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