2a-a-8=15+3a

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Solution for 2a-a-8=15+3a equation:


Simplifying
2a + -1a + -8 = 15 + 3a

Reorder the terms:
-8 + 2a + -1a = 15 + 3a

Combine like terms: 2a + -1a = 1a
-8 + 1a = 15 + 3a

Solving
-8 + 1a = 15 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-8 + 1a + -3a = 15 + 3a + -3a

Combine like terms: 1a + -3a = -2a
-8 + -2a = 15 + 3a + -3a

Combine like terms: 3a + -3a = 0
-8 + -2a = 15 + 0
-8 + -2a = 15

Add '8' to each side of the equation.
-8 + 8 + -2a = 15 + 8

Combine like terms: -8 + 8 = 0
0 + -2a = 15 + 8
-2a = 15 + 8

Combine like terms: 15 + 8 = 23
-2a = 23

Divide each side by '-2'.
a = -11.5

Simplifying
a = -11.5

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