3a-2(a-2)+4=12

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Solution for 3a-2(a-2)+4=12 equation:


Simplifying
3a + -2(a + -2) + 4 = 12

Reorder the terms:
3a + -2(-2 + a) + 4 = 12
3a + (-2 * -2 + a * -2) + 4 = 12
3a + (4 + -2a) + 4 = 12

Reorder the terms:
4 + 4 + 3a + -2a = 12

Combine like terms: 4 + 4 = 8
8 + 3a + -2a = 12

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

Solving
8 + 1a = 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 + 1a = 12 + -8

Combine like terms: 8 + -8 = 0
0 + 1a = 12 + -8
1a = 12 + -8

Combine like terms: 12 + -8 = 4
1a = 4

Divide each side by '1'.
a = 4

Simplifying
a = 4

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