8+12a=-5a-13

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Solution for 8+12a=-5a-13 equation:


Simplifying
8 + 12a = -5a + -13

Reorder the terms:
8 + 12a = -13 + -5a

Solving
8 + 12a = -13 + -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
8 + 12a + 5a = -13 + -5a + 5a

Combine like terms: 12a + 5a = 17a
8 + 17a = -13 + -5a + 5a

Combine like terms: -5a + 5a = 0
8 + 17a = -13 + 0
8 + 17a = -13

Add '-8' to each side of the equation.
8 + -8 + 17a = -13 + -8

Combine like terms: 8 + -8 = 0
0 + 17a = -13 + -8
17a = -13 + -8

Combine like terms: -13 + -8 = -21
17a = -21

Divide each side by '17'.
a = -1.235294118

Simplifying
a = -1.235294118

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