12a+6(4-7a)=9(2a+4)

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Solution for 12a+6(4-7a)=9(2a+4) equation:


Simplifying
12a + 6(4 + -7a) = 9(2a + 4)
12a + (4 * 6 + -7a * 6) = 9(2a + 4)
12a + (24 + -42a) = 9(2a + 4)

Reorder the terms:
24 + 12a + -42a = 9(2a + 4)

Combine like terms: 12a + -42a = -30a
24 + -30a = 9(2a + 4)

Reorder the terms:
24 + -30a = 9(4 + 2a)
24 + -30a = (4 * 9 + 2a * 9)
24 + -30a = (36 + 18a)

Solving
24 + -30a = 36 + 18a

Solving for variable 'a'.

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

Add '-18a' to each side of the equation.
24 + -30a + -18a = 36 + 18a + -18a

Combine like terms: -30a + -18a = -48a
24 + -48a = 36 + 18a + -18a

Combine like terms: 18a + -18a = 0
24 + -48a = 36 + 0
24 + -48a = 36

Add '-24' to each side of the equation.
24 + -24 + -48a = 36 + -24

Combine like terms: 24 + -24 = 0
0 + -48a = 36 + -24
-48a = 36 + -24

Combine like terms: 36 + -24 = 12
-48a = 12

Divide each side by '-48'.
a = -0.25

Simplifying
a = -0.25

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