19-a=a+1

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Solution for 19-a=a+1 equation:


Simplifying
19 + -1a = a + 1

Reorder the terms:
19 + -1a = 1 + a

Solving
19 + -1a = 1 + 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.
19 + -1a + -1a = 1 + a + -1a

Combine like terms: -1a + -1a = -2a
19 + -2a = 1 + a + -1a

Combine like terms: a + -1a = 0
19 + -2a = 1 + 0
19 + -2a = 1

Add '-19' to each side of the equation.
19 + -19 + -2a = 1 + -19

Combine like terms: 19 + -19 = 0
0 + -2a = 1 + -19
-2a = 1 + -19

Combine like terms: 1 + -19 = -18
-2a = -18

Divide each side by '-2'.
a = 9

Simplifying
a = 9

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