42=a+0.05a

Solution for 42=a+0.05a equation:

Simplifying
42 = a + 0.05a

Combine like terms: a + 0.05a = 1.05a
42 = 1.05a

Solving
42 = 1.05a

Solving for variable 'a'.

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

Add '-1.05a' to each side of the equation.
42 + -1.05a = 1.05a + -1.05a

Combine like terms: 1.05a + -1.05a = 0.00
42 + -1.05a = 0.00

Add '-42' to each side of the equation.
42 + -42 + -1.05a = 0.00 + -42

Combine like terms: 42 + -42 = 0
0 + -1.05a = 0.00 + -42
-1.05a = 0.00 + -42

Combine like terms: 0.00 + -42 = -42
-1.05a = -42

Divide each side by '-1.05'.
a = 40

Simplifying
a = 40