3a-(12-a)=16

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Solution for 3a-(12-a)=16 equation:


Simplifying
3a + -1(12 + -1a) = 16
3a + (12 * -1 + -1a * -1) = 16
3a + (-12 + 1a) = 16

Reorder the terms:
-12 + 3a + 1a = 16

Combine like terms: 3a + 1a = 4a
-12 + 4a = 16

Solving
-12 + 4a = 16

Solving for variable 'a'.

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

Add '12' to each side of the equation.
-12 + 12 + 4a = 16 + 12

Combine like terms: -12 + 12 = 0
0 + 4a = 16 + 12
4a = 16 + 12

Combine like terms: 16 + 12 = 28
4a = 28

Divide each side by '4'.
a = 7

Simplifying
a = 7

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