20a-12(a-3)=4

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Solution for 20a-12(a-3)=4 equation:


Simplifying
20a + -12(a + -3) = 4

Reorder the terms:
20a + -12(-3 + a) = 4
20a + (-3 * -12 + a * -12) = 4
20a + (36 + -12a) = 4

Reorder the terms:
36 + 20a + -12a = 4

Combine like terms: 20a + -12a = 8a
36 + 8a = 4

Solving
36 + 8a = 4

Solving for variable 'a'.

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

Add '-36' to each side of the equation.
36 + -36 + 8a = 4 + -36

Combine like terms: 36 + -36 = 0
0 + 8a = 4 + -36
8a = 4 + -36

Combine like terms: 4 + -36 = -32
8a = -32

Divide each side by '8'.
a = -4

Simplifying
a = -4

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