3(a+4)=5a-12

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


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

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

Reorder the terms:
12 + 3a = -12 + 5a

Solving
12 + 3a = -12 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
12 + 3a + -5a = -12 + 5a + -5a

Combine like terms: 3a + -5a = -2a
12 + -2a = -12 + 5a + -5a

Combine like terms: 5a + -5a = 0
12 + -2a = -12 + 0
12 + -2a = -12

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

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

Combine like terms: -12 + -12 = -24
-2a = -24

Divide each side by '-2'.
a = 12

Simplifying
a = 12

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