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

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


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

Remove parenthesis around (4 + -1a)
5 = 4 + -1a + (9 + -4a)

Remove parenthesis around (9 + -4a)
5 = 4 + -1a + 9 + -4a

Reorder the terms:
5 = 4 + 9 + -1a + -4a

Combine like terms: 4 + 9 = 13
5 = 13 + -1a + -4a

Combine like terms: -1a + -4a = -5a
5 = 13 + -5a

Solving
5 = 13 + -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
5 + 5a = 13 + -5a + 5a

Combine like terms: -5a + 5a = 0
5 + 5a = 13 + 0
5 + 5a = 13

Add '-5' to each side of the equation.
5 + -5 + 5a = 13 + -5

Combine like terms: 5 + -5 = 0
0 + 5a = 13 + -5
5a = 13 + -5

Combine like terms: 13 + -5 = 8
5a = 8

Divide each side by '5'.
a = 1.6

Simplifying
a = 1.6

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