9-2a=17

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Solution for 9-2a=17 equation: 


Simplifying
9 + -2a = 17

Solving
9 + -2a = 17

Solving for variable 'a'.

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

Add '-9' to each side of the equation.
9 + -9 + -2a = 17 + -9

Combine like terms: 9 + -9 = 0
0 + -2a = 17 + -9
-2a = 17 + -9

Combine like terms: 17 + -9 = 8
-2a = 8

Divide each side by '-2'.
a = -4

Simplifying
a = -4

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