20d+13-12-43=0

Solution for 20d+13-12-43=0 equation:

Simplifying
20d + 13 + -12 + -43 = 0

Reorder the terms:
13 + -12 + -43 + 20d = 0

Combine like terms: 13 + -12 = 1
1 + -43 + 20d = 0

Combine like terms: 1 + -43 = -42
-42 + 20d = 0

Solving
-42 + 20d = 0

Solving for variable 'd'.

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

Add '42' to each side of the equation.
-42 + 42 + 20d = 0 + 42

Combine like terms: -42 + 42 = 0
0 + 20d = 0 + 42
20d = 0 + 42

Combine like terms: 0 + 42 = 42
20d = 42

Divide each side by '20'.
d = 2.1

Simplifying
d = 2.1