13a+9=11a

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Solution for 13a+9=11a equation:


Simplifying
13a + 9 = 11a

Reorder the terms:
9 + 13a = 11a

Solving
9 + 13a = 11a

Solving for variable 'a'.

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

Add '-11a' to each side of the equation.
9 + 13a + -11a = 11a + -11a

Combine like terms: 13a + -11a = 2a
9 + 2a = 11a + -11a

Combine like terms: 11a + -11a = 0
9 + 2a = 0

Add '-9' to each side of the equation.
9 + -9 + 2a = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 2a = 0 + -9
2a = 0 + -9

Combine like terms: 0 + -9 = -9
2a = -9

Divide each side by '2'.
a = -4.5

Simplifying
a = -4.5

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