2a+3=-9

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Solution for 2a+3=-9 equation: 


Simplifying
2a + 3 = -9

Reorder the terms:
3 + 2a = -9

Solving
3 + 2a = -9

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + 2a = -9 + -3

Combine like terms: 3 + -3 = 0
0 + 2a = -9 + -3
2a = -9 + -3

Combine like terms: -9 + -3 = -12
2a = -12

Divide each side by '2'.
a = -6

Simplifying
a = -6

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