2(1+2n)=-(-7-4r)-1

Solution for 2(1+2n)=-(-7-4r)-1 equation:

Simplifying
2(1 + 2n) = -1(-7 + -4r) + -1
(1 * 2 + 2n * 2) = -1(-7 + -4r) + -1
(2 + 4n) = -1(-7 + -4r) + -1
2 + 4n = (-7 * -1 + -4r * -1) + -1
2 + 4n = (7 + 4r) + -1

Reorder the terms:
2 + 4n = 7 + -1 + 4r

Combine like terms: 7 + -1 = 6
2 + 4n = 6 + 4r

Solving
2 + 4n = 6 + 4r

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 + 4n = 6 + -2 + 4r

Combine like terms: 2 + -2 = 0
0 + 4n = 6 + -2 + 4r
4n = 6 + -2 + 4r

Combine like terms: 6 + -2 = 4
4n = 4 + 4r

Divide each side by '4'.
n = 1 + r

Simplifying
n = 1 + r