12-a=5a+4

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


Simplifying
12 + -1a = 5a + 4

Reorder the terms:
12 + -1a = 4 + 5a

Solving
12 + -1a = 4 + 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.
12 + -1a + -5a = 4 + 5a + -5a

Combine like terms: -1a + -5a = -6a
12 + -6a = 4 + 5a + -5a

Combine like terms: 5a + -5a = 0
12 + -6a = 4 + 0
12 + -6a = 4

Add '-12' to each side of the equation.
12 + -12 + -6a = 4 + -12

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

Combine like terms: 4 + -12 = -8
-6a = -8

Divide each side by '-6'.
a = 1.333333333

Simplifying
a = 1.333333333

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