-5(5-(a+1))=9-(5-(2a-3))

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Solution for -5(5-(a+1))=9-(5-(2a-3)) equation:


Simplifying
-5(5 + -1(a + 1)) = 9 + -1(5 + -1(2a + -3))

Reorder the terms:
-5(5 + -1(1 + a)) = 9 + -1(5 + -1(2a + -3))
-5(5 + (1 * -1 + a * -1)) = 9 + -1(5 + -1(2a + -3))
-5(5 + (-1 + -1a)) = 9 + -1(5 + -1(2a + -3))

Combine like terms: 5 + -1 = 4
-5(4 + -1a) = 9 + -1(5 + -1(2a + -3))
(4 * -5 + -1a * -5) = 9 + -1(5 + -1(2a + -3))
(-20 + 5a) = 9 + -1(5 + -1(2a + -3))

Reorder the terms:
-20 + 5a = 9 + -1(5 + -1(-3 + 2a))
-20 + 5a = 9 + -1(5 + (-3 * -1 + 2a * -1))
-20 + 5a = 9 + -1(5 + (3 + -2a))

Combine like terms: 5 + 3 = 8
-20 + 5a = 9 + -1(8 + -2a)
-20 + 5a = 9 + (8 * -1 + -2a * -1)
-20 + 5a = 9 + (-8 + 2a)

Combine like terms: 9 + -8 = 1
-20 + 5a = 1 + 2a

Solving
-20 + 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.
-20 + 5a + -2a = 1 + 2a + -2a

Combine like terms: 5a + -2a = 3a
-20 + 3a = 1 + 2a + -2a

Combine like terms: 2a + -2a = 0
-20 + 3a = 1 + 0
-20 + 3a = 1

Add '20' to each side of the equation.
-20 + 20 + 3a = 1 + 20

Combine like terms: -20 + 20 = 0
0 + 3a = 1 + 20
3a = 1 + 20

Combine like terms: 1 + 20 = 21
3a = 21

Divide each side by '3'.
a = 7

Simplifying
a = 7

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