3-69=9-5a

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Solution for 3-69=9-5a equation:


Simplifying
3 + -69 = 9 + -5a

Combine like terms: 3 + -69 = -66
-66 = 9 + -5a

Solving
-66 = 9 + -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.
-66 + 5a = 9 + -5a + 5a

Combine like terms: -5a + 5a = 0
-66 + 5a = 9 + 0
-66 + 5a = 9

Add '66' to each side of the equation.
-66 + 66 + 5a = 9 + 66

Combine like terms: -66 + 66 = 0
0 + 5a = 9 + 66
5a = 9 + 66

Combine like terms: 9 + 66 = 75
5a = 75

Divide each side by '5'.
a = 15

Simplifying
a = 15

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