a+-6=15+8a

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Solution for a+-6=15+8a equation:


Simplifying
a + -6 = 15 + 8a

Reorder the terms:
-6 + a = 15 + 8a

Solving
-6 + a = 15 + 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
-6 + a + -8a = 15 + 8a + -8a

Combine like terms: a + -8a = -7a
-6 + -7a = 15 + 8a + -8a

Combine like terms: 8a + -8a = 0
-6 + -7a = 15 + 0
-6 + -7a = 15

Add '6' to each side of the equation.
-6 + 6 + -7a = 15 + 6

Combine like terms: -6 + 6 = 0
0 + -7a = 15 + 6
-7a = 15 + 6

Combine like terms: 15 + 6 = 21
-7a = 21

Divide each side by '-7'.
a = -3

Simplifying
a = -3

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