3(a-3)=12(a+4)

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Solution for 3(a-3)=12(a+4) equation:


Simplifying
3(a + -3) = 12(a + 4)

Reorder the terms:
3(-3 + a) = 12(a + 4)
(-3 * 3 + a * 3) = 12(a + 4)
(-9 + 3a) = 12(a + 4)

Reorder the terms:
-9 + 3a = 12(4 + a)
-9 + 3a = (4 * 12 + a * 12)
-9 + 3a = (48 + 12a)

Solving
-9 + 3a = 48 + 12a

Solving for variable 'a'.

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

Add '-12a' to each side of the equation.
-9 + 3a + -12a = 48 + 12a + -12a

Combine like terms: 3a + -12a = -9a
-9 + -9a = 48 + 12a + -12a

Combine like terms: 12a + -12a = 0
-9 + -9a = 48 + 0
-9 + -9a = 48

Add '9' to each side of the equation.
-9 + 9 + -9a = 48 + 9

Combine like terms: -9 + 9 = 0
0 + -9a = 48 + 9
-9a = 48 + 9

Combine like terms: 48 + 9 = 57
-9a = 57

Divide each side by '-9'.
a = -6.333333333

Simplifying
a = -6.333333333

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