1-(2+a)=13

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Solution for 1-(2+a)=13 equation:


Simplifying
1 + -1(2 + a) = 13
1 + (2 * -1 + a * -1) = 13
1 + (-2 + -1a) = 13

Combine like terms: 1 + -2 = -1
-1 + -1a = 13

Solving
-1 + -1a = 13

Solving for variable 'a'.

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

Add '1' to each side of the equation.
-1 + 1 + -1a = 13 + 1

Combine like terms: -1 + 1 = 0
0 + -1a = 13 + 1
-1a = 13 + 1

Combine like terms: 13 + 1 = 14
-1a = 14

Divide each side by '-1'.
a = -14

Simplifying
a = -14

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