1=a+2

Solution for 1=a+2 equation:

Simplifying
1 = a + 2

Reorder the terms:
1 = 2 + a

Solving
1 = 2 + 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.
1 + -1a = 2 + a + -1a

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

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

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

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

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

Simplifying
a = -1