8a+9b=-3

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Solution for 8a+9b=-3 equation: 


Simplifying
8a + 9b = -3

Solving
8a + 9b = -3

Solving for variable 'a'.

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

Add '-9b' to each side of the equation.
8a + 9b + -9b = -3 + -9b

Combine like terms: 9b + -9b = 0
8a + 0 = -3 + -9b
8a = -3 + -9b

Divide each side by '8'.
a = -0.375 + -1.125b

Simplifying
a = -0.375 + -1.125b

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