n+2n-3.5=1.1(n+2)

Solution for n+2n-3.5=1.1(n+2) equation:

Simplifying
n + 2n + -3.5 = 1.1(n + 2)

Reorder the terms:
-3.5 + n + 2n = 1.1(n + 2)

Combine like terms: n + 2n = 3n
-3.5 + 3n = 1.1(n + 2)

Reorder the terms:
-3.5 + 3n = 1.1(2 + n)
-3.5 + 3n = (2 * 1.1 + n * 1.1)
-3.5 + 3n = (2.2 + 1.1n)

Solving
-3.5 + 3n = 2.2 + 1.1n

Solving for variable 'n'.

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

Add '-1.1n' to each side of the equation.
-3.5 + 3n + -1.1n = 2.2 + 1.1n + -1.1n

Combine like terms: 3n + -1.1n = 1.9n
-3.5 + 1.9n = 2.2 + 1.1n + -1.1n

Combine like terms: 1.1n + -1.1n = 0.0
-3.5 + 1.9n = 2.2 + 0.0
-3.5 + 1.9n = 2.2

Add '3.5' to each side of the equation.
-3.5 + 3.5 + 1.9n = 2.2 + 3.5

Combine like terms: -3.5 + 3.5 = 0.0
0.0 + 1.9n = 2.2 + 3.5
1.9n = 2.2 + 3.5

Combine like terms: 2.2 + 3.5 = 5.7
1.9n = 5.7

Divide each side by '1.9'.
n = 3

Simplifying
n = 3