3a+8=12-5a

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Solution for 3a+8=12-5a equation:


Simplifying
3a + 8 = 12 + -5a

Reorder the terms:
8 + 3a = 12 + -5a

Solving
8 + 3a = 12 + -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.
8 + 3a + 5a = 12 + -5a + 5a

Combine like terms: 3a + 5a = 8a
8 + 8a = 12 + -5a + 5a

Combine like terms: -5a + 5a = 0
8 + 8a = 12 + 0
8 + 8a = 12

Add '-8' to each side of the equation.
8 + -8 + 8a = 12 + -8

Combine like terms: 8 + -8 = 0
0 + 8a = 12 + -8
8a = 12 + -8

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

Divide each side by '8'.
a = 0.5

Simplifying
a = 0.5

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