12a-2(5a-4)=3

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Solution for 12a-2(5a-4)=3 equation:


Simplifying
12a + -2(5a + -4) = 3

Reorder the terms:
12a + -2(-4 + 5a) = 3
12a + (-4 * -2 + 5a * -2) = 3
12a + (8 + -10a) = 3

Reorder the terms:
8 + 12a + -10a = 3

Combine like terms: 12a + -10a = 2a
8 + 2a = 3

Solving
8 + 2a = 3

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 = 3 + -8

Combine like terms: 8 + -8 = 0
0 + 2a = 3 + -8
2a = 3 + -8

Combine like terms: 3 + -8 = -5
2a = -5

Divide each side by '2'.
a = -2.5

Simplifying
a = -2.5

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