Answer:
Simplifying
63 = -3(1 + -2n)
63 = (1 * -3 + -2n * -3)
63 = (-3 + 6n)
Solving
63 = -3 + 6n
Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right.
Add '-6n' to each side of the equation.
63 + -6n = -3 + 6n + -6n
Combine like terms: 6n + -6n = 0
63 + -6n = -3 + 0
63 + -6n = -3
Add '-63' to each side of the equation.
63 + -63 + -6n = -3 + -63
Combine like terms: 63 + -63 = 0
0 + -6n = -3 + -63
-6n = -3 + -63
Combine like terms: -3 + -63 = -66
-6n = -66
Divide each side by '-6'.
n = 11
Simplifying
n = 11
Explanation: