5(a+5)-9=3(a-1)-(a-4)

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Solution for 5(a+5)-9=3(a-1)-(a-4) equation:


Simplifying
5(a + 5) + -9 = 3(a + -1) + -1(a + -4)

Reorder the terms:
5(5 + a) + -9 = 3(a + -1) + -1(a + -4)
(5 * 5 + a * 5) + -9 = 3(a + -1) + -1(a + -4)
(25 + 5a) + -9 = 3(a + -1) + -1(a + -4)

Reorder the terms:
25 + -9 + 5a = 3(a + -1) + -1(a + -4)

Combine like terms: 25 + -9 = 16
16 + 5a = 3(a + -1) + -1(a + -4)

Reorder the terms:
16 + 5a = 3(-1 + a) + -1(a + -4)
16 + 5a = (-1 * 3 + a * 3) + -1(a + -4)
16 + 5a = (-3 + 3a) + -1(a + -4)

Reorder the terms:
16 + 5a = -3 + 3a + -1(-4 + a)
16 + 5a = -3 + 3a + (-4 * -1 + a * -1)
16 + 5a = -3 + 3a + (4 + -1a)

Reorder the terms:
16 + 5a = -3 + 4 + 3a + -1a

Combine like terms: -3 + 4 = 1
16 + 5a = 1 + 3a + -1a

Combine like terms: 3a + -1a = 2a
16 + 5a = 1 + 2a

Solving
16 + 5a = 1 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
16 + 5a + -2a = 1 + 2a + -2a

Combine like terms: 5a + -2a = 3a
16 + 3a = 1 + 2a + -2a

Combine like terms: 2a + -2a = 0
16 + 3a = 1 + 0
16 + 3a = 1

Add '-16' to each side of the equation.
16 + -16 + 3a = 1 + -16

Combine like terms: 16 + -16 = 0
0 + 3a = 1 + -16
3a = 1 + -16

Combine like terms: 1 + -16 = -15
3a = -15

Divide each side by '3'.
a = -5

Simplifying
a = -5

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