6a-12-a-13=

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Solution for 6a-12-a-13= equation:


Simplifying
6a + -12 + -1a + -13 = 0

Reorder the terms:
-12 + -13 + 6a + -1a = 0

Combine like terms: -12 + -13 = -25
-25 + 6a + -1a = 0

Combine like terms: 6a + -1a = 5a
-25 + 5a = 0

Solving
-25 + 5a = 0

Solving for variable 'a'.

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

Add '25' to each side of the equation.
-25 + 25 + 5a = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 5a = 0 + 25
5a = 0 + 25

Combine like terms: 0 + 25 = 25
5a = 25

Divide each side by '5'.
a = 5

Simplifying
a = 5

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