a-(9b-13b)=

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Solution for a-(9b-13b)= equation:


Simplifying
a + -1(9b + -13b) = 0

Combine like terms: 9b + -13b = -4b
a + -1(-4b) = 0

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

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

Solving
a + 4b = 0

Solving for variable 'a'.

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

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

Combine like terms: 4b + -4b = 0
a + 0 = 0 + -4b
a = 0 + -4b
Remove the zero:
a = -4b

Simplifying
a = -4b

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