16=a+9

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Solution for 16=a+9 equation:


Simplifying
16 = a + 9

Reorder the terms:
16 = 9 + a

Solving
16 = 9 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
16 + -1a = 9 + a + -1a

Combine like terms: a + -1a = 0
16 + -1a = 9 + 0
16 + -1a = 9

Add '-16' to each side of the equation.
16 + -16 + -1a = 9 + -16

Combine like terms: 16 + -16 = 0
0 + -1a = 9 + -16
-1a = 9 + -16

Combine like terms: 9 + -16 = -7
-1a = -7

Divide each side by '-1'.
a = 7

Simplifying
a = 7

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