15-2a-a-12=5a+5

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Solution for 15-2a-a-12=5a+5 equation:


Simplifying
15 + -2a + -1a + -12 = 5a + 5

Reorder the terms:
15 + -12 + -2a + -1a = 5a + 5

Combine like terms: 15 + -12 = 3
3 + -2a + -1a = 5a + 5

Combine like terms: -2a + -1a = -3a
3 + -3a = 5a + 5

Reorder the terms:
3 + -3a = 5 + 5a

Solving
3 + -3a = 5 + 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.
3 + -3a + -5a = 5 + 5a + -5a

Combine like terms: -3a + -5a = -8a
3 + -8a = 5 + 5a + -5a

Combine like terms: 5a + -5a = 0
3 + -8a = 5 + 0
3 + -8a = 5

Add '-3' to each side of the equation.
3 + -3 + -8a = 5 + -3

Combine like terms: 3 + -3 = 0
0 + -8a = 5 + -3
-8a = 5 + -3

Combine like terms: 5 + -3 = 2
-8a = 2

Divide each side by '-8'.
a = -0.25

Simplifying
a = -0.25

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