r+m+15andr=2m+3

Solution for r+m+15andr=2m+3 equation:

Simplifying
r + m + 15andr = 2m + 3

Reorder the terms:
15adnr + m + r = 2m + 3

Reorder the terms:
15adnr + m + r = 3 + 2m

Solving
15adnr + m + r = 3 + 2m

Solving for variable 'a'.

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

Add '-1m' to each side of the equation.
15adnr + m + -1m + r = 3 + 2m + -1m

Combine like terms: m + -1m = 0
15adnr + 0 + r = 3 + 2m + -1m
15adnr + r = 3 + 2m + -1m

Combine like terms: 2m + -1m = 1m
15adnr + r = 3 + 1m

Add '-1r' to each side of the equation.
15adnr + r + -1r = 3 + 1m + -1r

Combine like terms: r + -1r = 0
15adnr + 0 = 3 + 1m + -1r
15adnr = 3 + 1m + -1r

Divide each side by '15dnr'.
a = 0.2d-1n-1r-1 + 0.06666666667d-1mn-1r-1 + -0.06666666667d-1n-1

Simplifying
a = 0.2d-1n-1r-1 + 0.06666666667d-1mn-1r-1 + -0.06666666667d-1n-1

Reorder the terms:
a = 0.06666666667d-1mn-1r-1 + -0.06666666667d-1n-1 + 0.2d-1n-1r-1