6a-9=6+9

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Solution for 6a-9=6+9 equation: 


Simplifying
6a + -9 = 6 + 9

Reorder the terms:
-9 + 6a = 6 + 9

Combine like terms: 6 + 9 = 15
-9 + 6a = 15

Solving
-9 + 6a = 15

Solving for variable 'a'.

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

Add '9' to each side of the equation.
-9 + 9 + 6a = 15 + 9

Combine like terms: -9 + 9 = 0
0 + 6a = 15 + 9
6a = 15 + 9

Combine like terms: 15 + 9 = 24
6a = 24

Divide each side by '6'.
a = 4

Simplifying
a = 4

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