5[a-9]=65

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Solution for 5[a-9]=65 equation: 


Simplifying
5[a + -9] = 65

Reorder the terms:
5[-9 + a] = 65
[-9 * 5 + a * 5] = 65
[-45 + 5a] = 65

Solving
-45 + 5a = 65

Solving for variable 'a'.

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

Add '45' to each side of the equation.
-45 + 45 + 5a = 65 + 45

Combine like terms: -45 + 45 = 0
0 + 5a = 65 + 45
5a = 65 + 45

Combine like terms: 65 + 45 = 110
5a = 110

Divide each side by '5'.
a = 22

Simplifying
a = 22

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