5a+4b+5a-4b=45

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Solution for 5a+4b+5a-4b=45 equation: 


Simplifying
5a + 4b + 5a + -4b = 45

Reorder the terms:
5a + 5a + 4b + -4b = 45

Combine like terms: 5a + 5a = 10a
10a + 4b + -4b = 45

Combine like terms: 4b + -4b = 0
10a + 0 = 45
10a = 45

Solving
10a = 45

Solving for variable 'a'.

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

Divide each side by '10'.
a = 4.5

Simplifying
a = 4.5

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