-50-18=a

Solution for -50-18=a equation:

Simplifying
-50 + -18 = a

Combine like terms: -50 + -18 = -68
-68 = a

Solving
-68 = 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.
-68 + -1a = a + -1a

Combine like terms: a + -1a = 0
-68 + -1a = 0

Add '68' to each side of the equation.
-68 + 68 + -1a = 0 + 68

Combine like terms: -68 + 68 = 0
0 + -1a = 0 + 68
-1a = 0 + 68

Combine like terms: 0 + 68 = 68
-1a = 68

Divide each side by '-1'.
a = -68

Simplifying
a = -68