12a+15+(-4)-3a+6+a=

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Solution for 12a+15+(-4)-3a+6+a= equation:


Simplifying
12a + 15 + (-4) + -3a + 6 + a = 0
12a + 15 + -4 + -3a + 6 + a = 0

Reorder the terms:
15 + -4 + 6 + 12a + -3a + a = 0

Combine like terms: 15 + -4 = 11
11 + 6 + 12a + -3a + a = 0

Combine like terms: 11 + 6 = 17
17 + 12a + -3a + a = 0

Combine like terms: 12a + -3a = 9a
17 + 9a + a = 0

Combine like terms: 9a + a = 10a
17 + 10a = 0

Solving
17 + 10a = 0

Solving for variable 'a'.

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

Add '-17' to each side of the equation.
17 + -17 + 10a = 0 + -17

Combine like terms: 17 + -17 = 0
0 + 10a = 0 + -17
10a = 0 + -17

Combine like terms: 0 + -17 = -17
10a = -17

Divide each side by '10'.
a = -1.7

Simplifying
a = -1.7

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