7n+2(n-1)=34

Solution for 7n+2(n-1)=34 equation:

Simplifying
7n + 2(n + -1) = 34

Reorder the terms:
7n + 2(-1 + n) = 34
7n + (-1 * 2 + n * 2) = 34
7n + (-2 + 2n) = 34

Reorder the terms:
-2 + 7n + 2n = 34

Combine like terms: 7n + 2n = 9n
-2 + 9n = 34

Solving
-2 + 9n = 34

Solving for variable 'n'.

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

Add '2' to each side of the equation.
-2 + 2 + 9n = 34 + 2

Combine like terms: -2 + 2 = 0
0 + 9n = 34 + 2
9n = 34 + 2

Combine like terms: 34 + 2 = 36
9n = 36

Divide each side by '9'.
n = 4

Simplifying
n = 4