4(2.25a+.75)=12(2a+3)

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Solution for 4(2.25a+.75)=12(2a+3) equation:


Simplifying
4(2.25a + 0.75) = 12(2a + 3)

Reorder the terms:
4(0.75 + 2.25a) = 12(2a + 3)
(0.75 * 4 + 2.25a * 4) = 12(2a + 3)
(3 + 9a) = 12(2a + 3)

Reorder the terms:
3 + 9a = 12(3 + 2a)
3 + 9a = (3 * 12 + 2a * 12)
3 + 9a = (36 + 24a)

Solving
3 + 9a = 36 + 24a

Solving for variable 'a'.

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

Add '-24a' to each side of the equation.
3 + 9a + -24a = 36 + 24a + -24a

Combine like terms: 9a + -24a = -15a
3 + -15a = 36 + 24a + -24a

Combine like terms: 24a + -24a = 0
3 + -15a = 36 + 0
3 + -15a = 36

Add '-3' to each side of the equation.
3 + -3 + -15a = 36 + -3

Combine like terms: 3 + -3 = 0
0 + -15a = 36 + -3
-15a = 36 + -3

Combine like terms: 36 + -3 = 33
-15a = 33

Divide each side by '-15'.
a = -2.2

Simplifying
a = -2.2

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