12a+3-5a=a+9-4

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Solution for 12a+3-5a=a+9-4 equation:


Simplifying
12a + 3 + -5a = a + 9 + -4

Reorder the terms:
3 + 12a + -5a = a + 9 + -4

Combine like terms: 12a + -5a = 7a
3 + 7a = a + 9 + -4

Reorder the terms:
3 + 7a = 9 + -4 + a

Combine like terms: 9 + -4 = 5
3 + 7a = 5 + a

Solving
3 + 7a = 5 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
3 + 7a + -1a = 5 + a + -1a

Combine like terms: 7a + -1a = 6a
3 + 6a = 5 + a + -1a

Combine like terms: a + -1a = 0
3 + 6a = 5 + 0
3 + 6a = 5

Add '-3' to each side of the equation.
3 + -3 + 6a = 5 + -3

Combine like terms: 3 + -3 = 0
0 + 6a = 5 + -3
6a = 5 + -3

Combine like terms: 5 + -3 = 2
6a = 2

Divide each side by '6'.
a = 0.3333333333

Simplifying
a = 0.3333333333

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