3a-(a-2)+6=12

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Solution for 3a-(a-2)+6=12 equation:


Simplifying
3a + -1(a + -2) + 6 = 12

Reorder the terms:
3a + -1(-2 + a) + 6 = 12
3a + (-2 * -1 + a * -1) + 6 = 12
3a + (2 + -1a) + 6 = 12

Reorder the terms:
2 + 6 + 3a + -1a = 12

Combine like terms: 2 + 6 = 8
8 + 3a + -1a = 12

Combine like terms: 3a + -1a = 2a
8 + 2a = 12

Solving
8 + 2a = 12

Solving for variable 'a'.

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

Add '-8' to each side of the equation.
8 + -8 + 2a = 12 + -8

Combine like terms: 8 + -8 = 0
0 + 2a = 12 + -8
2a = 12 + -8

Combine like terms: 12 + -8 = 4
2a = 4

Divide each side by '2'.
a = 2

Simplifying
a = 2

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