3(12-a)=-5(9a+7)

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Solution for 3(12-a)=-5(9a+7) equation:


Simplifying
3(12 + -1a) = -5(9a + 7)
(12 * 3 + -1a * 3) = -5(9a + 7)
(36 + -3a) = -5(9a + 7)

Reorder the terms:
36 + -3a = -5(7 + 9a)
36 + -3a = (7 * -5 + 9a * -5)
36 + -3a = (-35 + -45a)

Solving
36 + -3a = -35 + -45a

Solving for variable 'a'.

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

Add '45a' to each side of the equation.
36 + -3a + 45a = -35 + -45a + 45a

Combine like terms: -3a + 45a = 42a
36 + 42a = -35 + -45a + 45a

Combine like terms: -45a + 45a = 0
36 + 42a = -35 + 0
36 + 42a = -35

Add '-36' to each side of the equation.
36 + -36 + 42a = -35 + -36

Combine like terms: 36 + -36 = 0
0 + 42a = -35 + -36
42a = -35 + -36

Combine like terms: -35 + -36 = -71
42a = -71

Divide each side by '42'.
a = -1.69047619

Simplifying
a = -1.69047619

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