9=2a+9

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Solution for 9=2a+9 equation:


Simplifying
9 = 2a + 9

Reorder the terms:
9 = 9 + 2a

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

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

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

Solving
0 = 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
0 + -2a = 2a + -2a
Remove the zero:
-2a = 2a + -2a

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

Divide each side by '-2'.
a = 0

Simplifying
a = 0

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