9=a-10

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Solution for 9=a-10 equation:


Simplifying
9 = a + -10

Reorder the terms:
9 = -10 + a

Solving
9 = -10 + 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.
9 + -1a = -10 + a + -1a

Combine like terms: a + -1a = 0
9 + -1a = -10 + 0
9 + -1a = -10

Add '-9' to each side of the equation.
9 + -9 + -1a = -10 + -9

Combine like terms: 9 + -9 = 0
0 + -1a = -10 + -9
-1a = -10 + -9

Combine like terms: -10 + -9 = -19
-1a = -19

Divide each side by '-1'.
a = 19

Simplifying
a = 19

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