6a+3[5-2(a+4)]=3a-3

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Solution for 6a+3[5-2(a+4)]=3a-3 equation:


Simplifying
6a + 3[5 + -2(a + 4)] = 3a + -3

Reorder the terms:
6a + 3[5 + -2(4 + a)] = 3a + -3
6a + 3[5 + (4 * -2 + a * -2)] = 3a + -3
6a + 3[5 + (-8 + -2a)] = 3a + -3

Combine like terms: 5 + -8 = -3
6a + 3[-3 + -2a] = 3a + -3
6a + [-3 * 3 + -2a * 3] = 3a + -3
6a + [-9 + -6a] = 3a + -3

Reorder the terms:
-9 + 6a + -6a = 3a + -3

Combine like terms: 6a + -6a = 0
-9 + 0 = 3a + -3
-9 = 3a + -3

Reorder the terms:
-9 = -3 + 3a

Solving
-9 = -3 + 3a

Solving for variable 'a'.

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

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

Combine like terms: 3a + -3a = 0
-9 + -3a = -3 + 0
-9 + -3a = -3

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

Combine like terms: -9 + 9 = 0
0 + -3a = -3 + 9
-3a = -3 + 9

Combine like terms: -3 + 9 = 6
-3a = 6

Divide each side by '-3'.
a = -2

Simplifying
a = -2

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