-3a-9=10

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Solution for -3a-9=10 equation: 


Simplifying
-3a + -9 = 10

Reorder the terms:
-9 + -3a = 10

Solving
-9 + -3a = 10

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 + -3a = 10 + 9

Combine like terms: -9 + 9 = 0
0 + -3a = 10 + 9
-3a = 10 + 9

Combine like terms: 10 + 9 = 19
-3a = 19

Divide each side by '-3'.
a = -6.333333333

Simplifying
a = -6.333333333

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