8+4=12+3a

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Solution for 8+4=12+3a equation:


Simplifying
8 + 4 = 12 + 3a

Combine like terms: 8 + 4 = 12
12 = 12 + 3a

Add '-12' to each side of the equation.
12 + -12 = 12 + -12 + 3a

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

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

Solving
0 = 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.
0 + -3a = 3a + -3a
Remove the zero:
-3a = 3a + -3a

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

Divide each side by '-3'.
a = 0

Simplifying
a = 0

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