-5a-7b+a-5b-4-(-a)=

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Solution for -5a-7b+a-5b-4-(-a)= equation:


Simplifying
-5a + -7b + a + -5b + -4 + -1(-1a) = 0

Remove parenthesis around (-1a)
-5a + -7b + a + -5b + -4 + -1 * -1a = 0

Multiply -1 * -1
-5a + -7b + a + -5b + -4 + 1a = 0

Reorder the terms:
-4 + -5a + a + 1a + -7b + -5b = 0

Combine like terms: -5a + a = -4a
-4 + -4a + 1a + -7b + -5b = 0

Combine like terms: -4a + 1a = -3a
-4 + -3a + -7b + -5b = 0

Combine like terms: -7b + -5b = -12b
-4 + -3a + -12b = 0

Solving
-4 + -3a + -12b = 0

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + -3a + 4 + -12b = 0 + 4

Reorder the terms:
-4 + 4 + -3a + -12b = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -3a + -12b = 0 + 4
-3a + -12b = 0 + 4

Combine like terms: 0 + 4 = 4
-3a + -12b = 4

Add '12b' to each side of the equation.
-3a + -12b + 12b = 4 + 12b

Combine like terms: -12b + 12b = 0
-3a + 0 = 4 + 12b
-3a = 4 + 12b

Divide each side by '-3'.
a = -1.333333333 + -4b

Simplifying
a = -1.333333333 + -4b

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