3(a+4)=-5a

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


Simplifying
3(a + 4) = -5a

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

Solving
12 + 3a = -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 = -5a + 5a

Combine like terms: 3a + 5a = 8a
12 + 8a = -5a + 5a

Combine like terms: -5a + 5a = 0
12 + 8a = 0

Add '-12' to each side of the equation.
12 + -12 + 8a = 0 + -12

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

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

Divide each side by '8'.
a = -1.5

Simplifying
a = -1.5

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