1a+4=-15

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Solution for 1a+4=-15 equation: 


Simplifying
1a + 4 = -15

Reorder the terms:
4 + 1a = -15

Solving
4 + 1a = -15

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + -4 + 1a = -15 + -4

Combine like terms: 4 + -4 = 0
0 + 1a = -15 + -4
1a = -15 + -4

Combine like terms: -15 + -4 = -19
1a = -19

Divide each side by '1'.
a = -19

Simplifying
a = -19

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