[9(a+5)-16]+[3(a-2)+5]=

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Solution for [9(a+5)-16]+[3(a-2)+5]= equation:


Simplifying
[9(a + 5) + -16] + [3(a + -2) + 5] = 0

Reorder the terms:
[9(5 + a) + -16] + [3(a + -2) + 5] = 0
[(5 * 9 + a * 9) + -16] + [3(a + -2) + 5] = 0
[(45 + 9a) + -16] + [3(a + -2) + 5] = 0

Reorder the terms:
[45 + -16 + 9a] + [3(a + -2) + 5] = 0

Combine like terms: 45 + -16 = 29
[29 + 9a] + [3(a + -2) + 5] = 0

Remove brackets around [29 + 9a]
29 + 9a + [3(a + -2) + 5] = 0

Reorder the terms:
29 + 9a + [3(-2 + a) + 5] = 0
29 + 9a + [(-2 * 3 + a * 3) + 5] = 0
29 + 9a + [(-6 + 3a) + 5] = 0

Reorder the terms:
29 + 9a + [-6 + 5 + 3a] = 0

Combine like terms: -6 + 5 = -1
29 + 9a + [-1 + 3a] = 0

Remove brackets around [-1 + 3a]
29 + 9a + -1 + 3a = 0

Reorder the terms:
29 + -1 + 9a + 3a = 0

Combine like terms: 29 + -1 = 28
28 + 9a + 3a = 0

Combine like terms: 9a + 3a = 12a
28 + 12a = 0

Solving
28 + 12a = 0

Solving for variable 'a'.

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

Add '-28' to each side of the equation.
28 + -28 + 12a = 0 + -28

Combine like terms: 28 + -28 = 0
0 + 12a = 0 + -28
12a = 0 + -28

Combine like terms: 0 + -28 = -28
12a = -28

Divide each side by '12'.
a = -2.333333333

Simplifying
a = -2.333333333

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