n-2.5-1.9=-2(n-1.3)

Solution for n-2.5-1.9=-2(n-1.3) equation:

Simplifying
n + -2.5 + -1.9 = -2(n + -1.3)

Reorder the terms:
-2.5 + -1.9 + n = -2(n + -1.3)

Combine like terms: -2.5 + -1.9 = -4.4
-4.4 + n = -2(n + -1.3)

Reorder the terms:
-4.4 + n = -2(-1.3 + n)
-4.4 + n = (-1.3 * -2 + n * -2)
-4.4 + n = (2.6 + -2n)

Solving
-4.4 + n = 2.6 + -2n

Solving for variable 'n'.

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

Add '2n' to each side of the equation.
-4.4 + n + 2n = 2.6 + -2n + 2n

Combine like terms: n + 2n = 3n
-4.4 + 3n = 2.6 + -2n + 2n

Combine like terms: -2n + 2n = 0
-4.4 + 3n = 2.6 + 0
-4.4 + 3n = 2.6

Add '4.4' to each side of the equation.
-4.4 + 4.4 + 3n = 2.6 + 4.4

Combine like terms: -4.4 + 4.4 = 0.0
0.0 + 3n = 2.6 + 4.4
3n = 2.6 + 4.4

Combine like terms: 2.6 + 4.4 = 7
3n = 7

Divide each side by '3'.
n = 2.333333333

Simplifying
n = 2.333333333