9(a+4)=12-5a

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Solution for 9(a+4)=12-5a equation:


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

Reorder the terms:
9(4 + a) = 12 + -5a
(4 * 9 + a * 9) = 12 + -5a
(36 + 9a) = 12 + -5a

Solving
36 + 9a = 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.
36 + 9a + 5a = 12 + -5a + 5a

Combine like terms: 9a + 5a = 14a
36 + 14a = 12 + -5a + 5a

Combine like terms: -5a + 5a = 0
36 + 14a = 12 + 0
36 + 14a = 12

Add '-36' to each side of the equation.
36 + -36 + 14a = 12 + -36

Combine like terms: 36 + -36 = 0
0 + 14a = 12 + -36
14a = 12 + -36

Combine like terms: 12 + -36 = -24
14a = -24

Divide each side by '14'.
a = -1.714285714

Simplifying
a = -1.714285714

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