13a+8b+9=0

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Solution for 13a+8b+9=0 equation:


Simplifying
13a + 8b + 9 = 0

Reorder the terms:
9 + 13a + 8b = 0

Solving
9 + 13a + 8b = 0

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 + 13a + -9 + 8b = 0 + -9

Reorder the terms:
9 + -9 + 13a + 8b = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 13a + 8b = 0 + -9
13a + 8b = 0 + -9

Combine like terms: 0 + -9 = -9
13a + 8b = -9

Add '-8b' to each side of the equation.
13a + 8b + -8b = -9 + -8b

Combine like terms: 8b + -8b = 0
13a + 0 = -9 + -8b
13a = -9 + -8b

Divide each side by '13'.
a = -0.6923076923 + -0.6153846154b

Simplifying
a = -0.6923076923 + -0.6153846154b

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